Answer:
The expression "sine squared theta over the quantity 1 plus cosine theta end quantity" can be simplified to "1 - cos θ".
Answer:
1 - cos θ
Step-by-step explanation:
Se compra medio galón de leche para poder llenar biberones de 5 onzas
¿cuantos biberones se podrán llenar?
¿Cuantos mililitros tendrá cada biberón?
Answer:
Step-by-step explanation:
here is a step-by-step explanation:
Convert half a gallon of milk to liters. There are 3.785 liters in a gallon, so half a gallon is 1.892 liters.
Convert 5 ounces to liters. There are 0.147868 liters in 5 ounces.
Divide the total volume of milk (1.892 liters) by the volume of each bottle (0.147868 liters) to find out how many bottles can be filled completely:
1.892 liters / 0.147868 liters per bottle = 12.8 bottles
Note that the answer is not a whole number, which means there will be some leftover milk after 12 bottles are filled.
To find out how many milliliters are in each bottle, we can convert 5 fluid ounces to milliliters:
5 fluid ounces x 29.5735 milliliters per fluid ounce = 147.868 milliliters
Therefore, each bottle will contain approximately 147.868 milliliters of milk.
So, in summary, with half a gallon of milk, you can fill 12 bottles completely and each bottle will contain about 147.868 milliliters of milk.
4/5*7
In simplest form
Answer:
5 3/5
Step-by-step explanation:
First, you write 4/5 x 7/1.
Next, you multiply 4x7 = 28.
Then, you multiply 5x1 = 5.
Now, you have an improper fraction--28/5.
You then divide 28/5 = 5 3/5.
No simplifying is needed.
Result: 5 3/5
a student attempted to solve the system 5x+2y=10 and -10x+2y=1 by graphing. the graph and the conclusion are below. what can you say about the students work?
Answer:
Correct answer below
Step-by-step explanation:
See image below of the two lines graphed and the intersection:
(didn't correctly identify the intersection)
T:R^3 to R^2 T(e1)=(1,4), T(e2)=(-2,9), T(e3)=(3,-8), where e1,e2, and e3 are the columns of the 3x3 identity matrix. Assume that T is a linear transformation. Find the standard matrix of T.
The value of standard matrix of T is,
⇒ [tex]\left[\begin{array}{ccc}1&-2&3\\- 4&9&- 8\\\end{array}\right][/tex]
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
Define T : R³ to R² as;
⇒ T(e₁) = (1, 4), T(e₂) = (-2,9), T(e₃) = (3,-8),
where e₁, e₂, and e₃ are the columns of the 3x3 identity matrix.
Now, The value of the standard matrix of T is,
T = [ T(e₁) T(e₂) T(e₃)]
= [tex]\left[\begin{array}{ccc}1&-2&3\\- 4&9&- 8\\\end{array}\right][/tex]
Therefore, The value of standard matrix of T is,
⇒ [tex]\left[\begin{array}{ccc}1&-2&3\\- 4&9&- 8\\\end{array}\right][/tex]
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add 5⁄6 + 2⁄3 + 1⁄4 =
The sum of the fractions is 7/4
How to evaluate the sum of the fractionsFrom the question, we have the following parameters that can be used in our computation:
5⁄6 + 2⁄3 + 1⁄4 =
Express the denominators of the fraction as 12
So, we have
5⁄6 + 2⁄3 + 1⁄4 = 10/12 + 8/12 + 3/12
Evaluate the sum
This gives
5⁄6 + 2⁄3 + 1⁄4 = = 21/12
Simplify
5⁄6 + 2⁄3 + 1⁄4 = 7/4
Hence, the solution si 7/4
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A department store is holding a drawing to give away free shopping sprees. There are 9 customers who have entered the drawing. 4 live in the town of Gaston, 3 live in Pike,, and 2 live in Wells. Two winners will be selected at random. What is the probability that. The first winner lives in Wells and the second lives in Gaston? Write your answer as a fraction in simplest form.
The probability that the first winner lives in Wells and the second lives in Gaston 1/9.
What is Probability?Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.
The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.
The degree to which something is likely to happen is basically what probability means.
Given:
Total number of customers entering the drawing = 9
Number of customers from Gaston = 4
Number of customers from Pike = 3
Number of customers from Wells = 2
Now the probability for the first winner to be from Wells will be
= 2/9
and, Probability of second winner to be from Gaston will be
= 4/8
= 1/2
So, the probability is
= 2/9 x 1/2
= 1/9.
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Write the equation of the line containing (-3,4) and (-1,-2)
y = -3x - 5
y = -3x + 1
y = -3x + 13
y = 3x + 1
Answer:
Step-by-step explanation:
(-2 - 4)/(-1 + 3)= -6/2 = -3
y - 4 = -3(x + 3)
y - 4 = -3x - 9
y = -3x - 5
Option 1
A study was conducted showing the relationship between the average maintenance cost and the age of a car in years.
Number of observations: 13
Least Squares | Standard | T
Parameter | Estimate | Error | Statistic| P-Value
Intercept | 54.7757 | 54.87 | 0.998282 | 0.3396
Slope | 120.689 | 11.8442 | 10.1898 | 0.0000
a) What is the formula for the regression function based on the output above (Write your equation in the context of question)?
b) Interpret the slope of the regression equation (In the context of question)?
c) Construct an 95% interval to predict the maintenance cost for a car that is 7 years old?
d) Based on this analysis, can we conclude that a relationship exists between the maintenance cost and the age of the car in years? What is the null and alternative hypothesis? Justify your answer using three steps process.
Answer:
Step-by-step explanation:
a) The formula for the regression function is:
Maintenance Cost = 54.7757 + 120.689 x Age of Car
b) The slope of the regression equation is 120.689. This means that on average, for every one year increase in the age of a car, the maintenance cost is expected to increase by $120.689.
c) To construct a 95% interval to predict the maintenance cost for a car that is 7 years old, we can use the formula:
Y = a + bX ± tα/2 * SE
where Y is the predicted maintenance cost, a is the intercept, b is the slope, X is the age of the car, tα/2 is the t-value for the 95% confidence level with n-2 degrees of freedom (11 in this case), and SE is the standard error of the estimate.
Plugging in the values, we get:
Y = 54.7757 + 120.689 * 7 ± 2.201 * 11.8442
Y = 923.167 ± 26.010
Therefore, we can be 95% confident that the maintenance cost for a car that is 7 years old will be between $897.16 and $949.17.
d) The null hypothesis is that there is no significant linear relationship between the average maintenance cost and the age of a car in years. The alternative hypothesis is that there is a significant linear relationship between the average maintenance cost and the age of a car in years.
To test the hypothesis, we can perform a t-test on the slope coefficient using the t-statistic and the p-value provided in the output. The t-statistic is 10.1898, which is much greater than the critical t-value at the 0.05 level of significance for a two-tailed test with 11 degrees of freedom (2.201). The p-value is 0.0000, which is less than the significance level of 0.05. Therefore, we can reject the null hypothesis and conclude that there is a significant linear relationship between the maintenance cost and the age of the car in years.
You are a driver of a dump truck with a trailer (dump bin) that is 21 feet long, 8 feet wide, and 6 feet tall. Daily, you haul full loads of dirt from one location to another. The dump bin can hold dirt equivalent to 1.2 times its capacity.
What is the minimum number of trips needed to haul 20,000 cubic feet of dirt?
A 16
B 17
C 19
D 20
E 24
The minimum number of trips needed to haul 20,000 cubic feet of dirt is B) 17.
What is capacity?
The ability to hold or contain something. The maximum amount or number that can be contained in a room's seating capacity.
The capacity of the dump bin is:
21 feet (length) x 8 feet (width) x 6 feet (height) = 1,008 cubic feet
The dump bin can hold dirt equivalent to 1.2 times its capacity, which is:
1.2 x 1,008 cubic feet = 1,209.6 cubic feet
To haul 20,000 cubic feet of dirt, you need:
20,000 cubic feet / 1,209.6 cubic feet per load = 16.52 loads
Since you can't have a fraction of a load, you need to round up to the nearest whole number, which is 17 loads.
Therefore, the minimum number of trips needed to haul 20,000 cubic feet of dirt is B) 17.
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simplify!! math question!
Using exponent rules we can simplify the expression to get:
√y³⁶ = y¹⁸
How to simplify the expression?Here we want to simplify the expression below:
√y³⁶
Remember that the square root is equivalent to an exponent of 1/2, then we can rewrite:
√y³⁶ = (y³⁶)¹´²
And that will be equal to:
(y³⁶)¹´² = y³⁶´² = y¹⁸
That is the expression simplified.
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What is the circumference of a circle with a radius of 14 feet use 22/7 for pi
2,464?” Feet
616 feet
88 feet
44 feet
The circumference of a circle with a radius of 14 feet is 88 feet.
What precisely is a circle?Every point in the surface of a circle, which is a circular, two-dimensional object, is evenly separated from the centre. All lines that cross the circle join together to produce the line of reflected symmetry. Each angle has axis of symmetry around the centre, in addition. Monitoring a linear interpolation in a surface while keeping a fixed distance from some other point will result in the closed shape of a circle. The English term circle derives from the Greek word curriculum provides students, which also means hoop or ring.
When we find the circumference, we obtain:
The circumference( C) of a circle is 2πr.
C=2πr
⇒C=2×[tex]\frac{22}{7}[/tex]×14=88 feet.
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What is 8.45 rounded to the nearest tenth
Answer:
8.5
Step-by-step explanation:
Where is the tenths place in a decimal?If you look at a decimal (0.00) there is the tenths, (0.00), hundredths (0.00), and so on.
What does it mean to round?Rounding to the nearest tenth, would mean first looking at the hundredths place (8.45), and if it is greater or equal to 5, which if it is, you round up, but if it isn't, you round down.
8.45 = 8.5Therefore, 8.45 rounded to the nearest tenth is 8.5.
Hello! I'd like some assistance with this question. Why can we only estimate the distances? Please elaborate on the whole thing.
You'll need a ruler that has "centimeters" on it.
Use the ruler to measure the distance from Town Hall to the Art Gallery.
I don't have a ruler with me, so I can't say for certain what that centimeter distance will be. Even if I had a ruler, it won't be much use because I cant put it directly to the paper. Only you are able to do that part. But I'll go over a hypothetical example.
Let's say the on paper distance from Town Hall to the Art Gallery is 5 cm (roughly 1.97 inches).
This means we multiply both sides by 5 in the steps shown below.
1 cm on paper : 200 m in real life
5*1 cm on paper : 5*200 m in real life
5 cm on paper : 1000 m in real life
5 cm on paper : 1 km in real life
So the 5 centimeters measured out with the ruler corresponds to the real life distance of 1 kilometer. This would be the real life distance from Town Hall to the Art Gallery. Again, this is a hypothetical example. The actual centimeter distance is likely different and you'll need to get a ruler to measure it out for yourself.
Let me know if this helps. If you have further questions, then please let me know.
4-23.
En tu hoja, dibuja un triángulo de pendiente con un ángulo de
inclinación de 45°.
Para dibujar un triángulo con un ángulo de inclinación de 45° realiza dos líneas perpendiculares y una tercera línea con un grado de 45° lo cual puedes hacer usando un transportador.
¿Cómo dibujar un triángulo con un ángulo de 45°?Un triángulo es una figura con tres lados y cuyos ángulos internos siempre suman 180°. El método más fácil para dibujar un triángulo con un ángulo de 45° es.
Dibuje dos líneas rectas perpendiculares (líneas que se cortan entre ellas).Dibuje una tercera línea para completar el triángulo usando un transportador para asegura que tenga 45° de inclinación.Aprenda más sobre ángulos en https://brainly.com/question/16701917
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Determine the width of a ramp in 3 decimal places, given that the ramp to a building has a height of 6 feet and 94o
94
o
angle of elevation
The height of the triangle is h = 2A/6.
What is height?Height is the measure of vertical distance, either how "tall" something or someone is, or how "high" the point is. For example, a person's height is typically measured using a stadiometer and is recorded in centimeters or feet and inches. The height of a mountain is usually measured in meters or feet. In aviation, height is measured from the surface of the earth, either above ground level (AGL) or above mean sea level (AMSL).
To find the height of a right triangle given the base, we can use the area formula A = 1/2bh. Rearranging this equation gives us the height: h = 2A/b. In this case, the base is 6 inches and the area is given as A. Therefore, the height of the triangle is h = 2A/6.
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The next dividend payment by Hoffman, Inc., will be $2.55 per share. The dividends are anticipated to maintain a groeth rate of 6 percent forever. Assume the stock currently selld for $48.70 per share.
Answer:
The dividend yield is the dividend next year divided by the current price, so the dividend yield is:
Dividend yield = D1 / P0
Dividend yield = $2.55 / $48.70
Dividend yield = .0524, or 5.24%
The capital gains yield, or percentage increase in the stock price, is the same as the dividend growth rate, so:
Capital gains yield = 6%
Suppose that a farmer has 75 rods (4 rods = 1 acre) on which to plant two crops: wheat and corn. To produce these crops, it costs the farmer (for seed, water, fertilizer, etc. ) $120 per rod for the wheat, and $210 per rod for the corn. The farmer has $15,000 available for expenses, but after the harvest the farmer must store the crops while awaiting favorable or good market conditions. The farmer has storage space for 4,000 bushels. Each rod yields an average of 110 bushels of wheat or 30 bushels of corn. If the net profit per bushel of wheat (after all the expenses) is $1.30 and for corn is $2.00, how should the merry farmer plant the 75 rods to maximize profit?
Use the optimization method described in the lecture.
Difference of density per acre of wheat and corn = 105
What is division?Division is the process of splitting a number or an amount into equal parts. Division is one of the four basic operations of arithmetic, the ways that numbers are combined to make new numbers. The other operations are addition, subtraction, and multiplication.
here, we have,
Given:
Yield in 110 acre farm = 17,600 Bushes of corn
Yield in 250 acre farm = 13,750 Bushes of wheat
Find:
Difference of density per acre of wheat and corn
Computation:
Yield per acres Bushes of corn = 17,600 / 110
Yield per acres Bushes of corn = 160
Yield per acres Bushes of wheat = 13,750 / 250
Yield per acres Bushes of wheat = 55
Difference of density per acre of wheat and corn = Yield per acres Bushes of corn - Yield per acres Bushes of wheat
Difference of density per acre of wheat and corn = 160 - 55
Difference of density per acre of wheat and corn = 105
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Find the equation of the line which is parallel to the line y=3x-2 and passes through the point 1,5
Equation of the line passing through (1, 5) is y = 3x + 2
What is line?A line is a one-dimensional figure, which has length but no width. A line is made of a set of points which is extended in opposite directions infinitely.
A line with no curve is called straight line.
Given,
A line is parallel to the line y = 3x - 2
To find slope of the given line, comparing with slope-intercept equation of line
y = mx + c
Slope m = 3
Line passes through point (1 , 5)
Slope of parallel lines are equal
m' = m = 3
Equation of the line
y - y' = m'(x - x')
y - 5 = 3(x - 1)
y - 5 = 3x - 3
y = 3x + 2
Hence, y = 3x + 2 is equation of the line passing through point (1,5).
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y=3x+2 is the equation of the line which is parallel to the line y=3x-2 and passes through the point 1,5
What is Slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
The given equation is y=3x-2
3 is the slope of given line.
The line parallel to this line will have same slope, slope is 3.
Now, the equation of line passing through 1, 5
5=3(1)+b
b=2
So slope intercept form y=3x+2
Hence, y=3x+2 is the equation of the line which is parallel to the line y=3x-2 and passes through the point 1,5
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100 POINTS WILL MARK BRAINLIEST HELPPPP
Here, The amount $26,000 is being deducted or reduced from the account which means it is debit...
If the amount of money is increased in an account then it termed as credit...Answer:
$26,000 is being deducted from the account which means it is debit.
Explanation:
The journal entry to record a $26,000 reduction in inventory would depend on the reason for the reduction. In general, if the reduction is due to a sale of inventory, the journal entry would be:
Date: 1-Oct
Account: Inventory
Account Number: 1020
Debit: Cost of Goods Sold
Credit: Inventory
In this case, the debit entry would be to the Cost of Goods Sold (COGS) account, which is an expense account that is used to record the cost of goods that have been sold during a particular period. The credit entry would be to the Inventory account, which represents the value of inventory that the business currently holds.
If the reduction in inventory is due to some other reason, such as loss, theft, or damage, the journal entry would be:
Date: 1-Oct
Account: Inventory
Account Number: 1020
Debit: Loss or Expense account
Credit: Inventory
In this case, the debit entry would be to a Loss or Expense account that reflects the reason for the reduction in inventory. The credit entry would be to the Inventory account.
Use the verticals line test to determine if y is a function of x in the graph
Which of the following statements is correct?
a) y is a function of x
B) y is not a function of x
Using the vertical line test we conclude that y is not a function of x.
How to use the vertical line test?When we have the graph of a relation, the vertical line test says that if we draw a vertical line over the graph and it intercepts the graph in more than one point, then the graph does not represent a function.
Here we have the graph of a circle, and there are multiple lines that intercept the graph twice (for example the line x = 0)
So we can conclude that this is not a function, thus, the correct option is A.
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f(x)=3(cos(x-(\pi )/(3))+1). Find the midline: y=
The midline y of the given function f(x)=3(cos(x-(\pi )/(3))+1) is 3.
What is midline of cosine function?A sinusoidal function's midline is the horizontal axis around which the signal goes up and down above and below. The midline is y = 0 for y = sin x. (the x-axis). The maximum and minimum values of the graph are situated on either side of the midline, which runs parallel to the x-axis.
Comparing the given function f(x) = 3(cos(x-(\pi )/(3))+1) with the standard form of cosine function:
y = acos(bx + c) + d
a = 3 and d = 1
The maximum value = 3 + 2 = 5
The minimum value = 3 - 2 = 1
The midline is given as:
midline = 1/2(maximum value - minimum value)
midline = 1/2(5 + 1)
midline = 3
Hence, the midline y of the given function is 3.
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If a customer uses a discount code that offers a 25% discount and free shipping, the hammer will cost $17.25. There is no sales tax if the customer buys the hammer online.
What is the original price of the hammer from the online retailer?
Answer:
the answer is 21.56
Step-by-step explanation:
have a nice day.
A function f(x) is an EVEN function. If f(2) = -5, which other point must be on the graph of f(x) ?
Answer:
Step-by-step explanation:
If f(x) is an even function, that means it has symmetry across the y-axis. In other words, if (a,b) is a point on the graph of f(x), then (-a,b) must also be on the graph.
We are given that f(2) = -5. Since 2 is a positive number, we know that (-2) is the corresponding negative value that also lies on the y-axis. Therefore, we can say that f(-2) = f(2) = -5.
So, the other point that must be on the graph of f(x) is (-2,-5).
Graph the solution to the following system of inequalities.
y> 4x-3
y<-3x-7
Answer: its 5y >32
Step-by-step explanation:
if one student is chosen at random, find the probability that the student was not a female and did not earn grade C.Giving a test to a group of students, the table below summarizes the grade earned by gender. Male Female Total А 16 19 35 B 18 6 24 с 17 10 27 Total 51 35 86 If one student is chosen at random, find the probability that the student was not a female and did not earn grade C. Round your answer to four decimal places.
The Probability that the student was not a female and did not earn grade C is 34/59.
What is Probability?Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.
The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.
The degree to which something is likely to happen is basically what probability means.
Given:
A B C Total
Male 16 18 17 51
Female 19 6 10 35
Total 35 24 27 86
Total number of non-female students who got a A and B : 34
Total number of students who got a A and B: 35+24= 59
So, the probability is
= 34/ 59
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Find the limit lim……
Answer:
The solution is 11
Step-by-step explanation:
To solve this question is quite easy, here are the step-by-step:
[tex] \sf \lim_{ t \to - 3} \sf ( - {t}^{2} - 6t + 2) \\ \\ \sf = - ( - 3)^{2} - 6( - 3) + 2 \\ \\ = \sf { - ( 9)} + 18 + 2 \\ \\ = \sf 9+ 2 \\ \\ = \sf 11[/tex]
This is my fourth time posting this, would someone please answer? I'd like some assistance with this question. Why can we only estimate the distances? Please elaborate on the whole thing.
In many contexts, we can estimate distances between objects or locations, but we may not always be able to measure them precisely. There are several reasons why we might only be able to estimate distances rather than measure them exactly:
Limitations of measuring instruments: The precision of a measuring instrument can limit our ability to measure distances accurately. For example, a ruler may only have markings up to a certain level of precision, so we may need to estimate distances between the markings.
The variability of the distance: In some cases, the distance we are measuring may be constantly changing, making it difficult to measure with precision. For example, if we are trying to measure the distance between two moving objects, the distance between them will constantly change, and we may need to estimate the distance at a particular moment in time.
Environmental factors: The environment can also make it difficult to measure distances precisely. For example, atmospheric conditions such as haze or fog can obscure objects and make it difficult to judge their distance accurately.
Human perception and judgment: Finally, our own perception and judgment can also limit our ability to measure distances accurately. For example, when estimating the distance to an object, our perception of the size of the object can affect our judgment of its distance.
In many cases, despite these limitations, estimates of distances can still be useful and informative. For example, in navigation, we may not need to know the exact distance between two points, but only an estimate that is accurate enough to help us navigate from one point to the other
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Find the missing coordinate of P, using the fact that P lies on the unit circle in the given quadrant.
The missing coordinate of P is (−3/7, 5/7).
What does coordinate mean?In mathematics, coordinates are used in the study of geometry and algebra to describe points, lines, planes and curves. Two or three points can be used to define a line, and a set of points can be used to define a plane. Coordinates can also be used to solve equations or to establish relationships between different figures.
In two-dimensional space, coordinates are usually written as pairs of numbers, such as (x, y). The first number (x) is the horizontal position, and the second number (y) is the vertical position. In three-dimensional space, coordinates are usually written as triples of numbers, such as (x, y, z). The first number (x) is the horizontal position, the second number (y) is the vertical position, and the third number (z) is the depth.
To find the missing coordinate of P, we can use the fact that P lies on the unit circle in quadrant IV. Since the unit circle is centered at (0,0), has a radius of 1, and is in quadrant IV, this means that the x-coordinate of P must be negative.
Since the unit circle has a radius of 1, the coordinates of P must satisfy the equation x2 + (5/7)2 = 1.
We can solve this equation by subtracting (5/7)2 from both sides, then taking the square root of both sides to get:
x2 − (5/7)2 = 1 − (5/7)2
x = √(1 − (5/7)2)
x = √(1 − 25/49)
x = −3/7
Therefore, the missing coordinate of P is (−3/7, 5/7).
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what are the answers to the question
geometry
Step-by-step explanation:
the wrong ratios were compared.
the ratio of corresponding line segments is the same :
RS/RQ = ST/QU
5/6 = 10/x
5x = 60
x = 12
also the second question can be seen as 2 projections with the same angle at different distances of the projection screen.
the baseline has 2 segments : 11 and 29-11 = 18.
the ratio between both segments is the same as the ratio of both legs:
11/18 = 16.5/p
11p = 297
p = 297/11 = 27
and the 3rd question is exactly based on the same structure.
the ratio of the baseline segments is the same as the ratio of the legs, as both sides of the central line are equal projections of different distances at the same projection screen :
4/6 = 8/y
4y = 48
y = 12
3. Select all the expressions that are
equivalent to 9 + 7x - 3y.
9 + 7x + 3y
• 9-7x- 3у
Г•9 - 7x + 3y
П 9+7x + (-3y)
П 9-(-7)x -3у
m
There are D. 9+7x+(-3y) and E. 9-(-7)x-3y that equivalent to the given expression 9 +7x-3y.
What are the equivalent expressions?Equivalent expressions are defined as mathematical statements that have containing identical variables or numbers.
The expression is given in the question, as follows:
9 + 7x - 3y
D. 9+7x+(-3y) is equivalent because the expression in the parentheses represents a negative value of 3y, so we can combine the 7x and the negative 3y terms to get 7x-3y, which when added to 9 gives the original expression of 9 +7x-3y.
E. 9-(-7)x-3y is equivalent because we can simply change the minus sign before the -7 to a plus sign, resulting in the original expression of 9 +7x-3y.
Thus, D. 9+7x+(-3y) and E. 9-(-7)x-3y are equivalent to the given expression 9 +7x-3y.
Learn more about the equivalent expressions here:
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The complete question would be as:
Select all the expressions that are equivalent to 9 +7x-3y.
A. 9+7x+3y
B. 9-7x-3y
C. 9-7x+3y
D. 9+7x+(-3y)
E. 9-(-7)x-3y