If Sally is 6ft tall there is a lamppost 15ft away from her and a building 45ft away from her, the building is 12ft tall.
We can use similar triangles to solve this problem. Let's assume that Sally's height is represented by the vertical line segment AB, the height of the building is represented by the vertical line segment CD, and the lamppost is represented by the point E.
We know that the distance between Sally and the lamppost is 15ft and the distance between Sally and the building is 45ft.
To find the height of the building, we need to find the length of the line segment CD. We can use the property of similar triangles that states that the ratio of corresponding sides in two similar triangles is equal.
Let's form two right triangles by drawing line segments AE and AC. We know that triangle ABE and triangle ABC are similar. We can set up a proportion as follows:
AB/AC = BE/BC
Substituting the known values, we get:
6/45 = x/15
Simplifying the equation, we get:
x = 2
Therefore, the height of the building is 2 times Sally's height, or:
2 * 6ft = 12ft
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Alice used the following steps to solve the equation...
Look at the Screen Shot ∨∨∨∨∨∨∨∨∨∨∨∨∨∨∨∨∨∨∨∨∨∨∨∨∨∨∨∨∨∨∨∨
The solution to the linear equation is determined as 5.
What are the steps of solving the equation?
The equation to solve is:
3x - 8 = 7
To solve for x, you can follow these steps:
Step 1: Add 8 to both sides of the equation to isolate the term with x on one side:
3x - 8 + 8 = 7 + 8 (combine constants here)
This simplifies to:
3x = 15
Step 2: Divide both sides of the equation by 3 to solve for x:
3x/3 = 15/3
This simplifies to:
x = 5
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6n²-39n-21
How To Solve This Factoring Perfect Squares Trinomials problem?
Answer:
First image.
Step-by-step explanation:
Second image.
A rectangle is seven times as long as it’s width. One way to write an expression to find the perimeter would be m+7m+m+7m. Write the expression in two other ways.
Step-by-step explanation:
Perimeter = 2 m + 2 * 7m
Perimeter = 2 ( m + 7m)
Perimeter = 2m + 14m
Perimeter = 16 m Pick any of them
Find the volume of the right cone below. Round your answer to the nearest tenth if necessary.
21
8
The requreid volume of the right cone is 1,411.2 cubic units.
We need to use the formula for the volume of a cone:
[tex]V = (1/3)\pi r^2h[/tex],
where r is the radius of the base of the cone and h is the height of the cone.We are given that the height of the cone is 21 and the radius of the base is 8.
V = (1/3)π(8²)(21)
V = 1,411.2 cubic units (rounded to the nearest tenth).
Therefore, the volume of the right cone is approximately 1,411.2 cubic units.
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2.
(05.02 MC)
Given ΔABC, what is the measure of b? (2 points)
Triangle ABC with angle A measuring 54 degrees and angle C measuring 59 degrees and side BC measuring 11
b = 9.668
b = 11.655
b = 12.516
b = 16.841
The measure of side ‘b’ in the given triangle ABC, with angle A measuring 54 degrees and angle C measuring 59 degrees and side BC measuring 11 is option-c:12.516, which is found using Sine-law.
What is Sine-law?In a scalene or oblique triangle (a non-right triangle), the law of sine describes the relationship between the sides and angles. Trigonometric laws such as the law of sines and law of cosines are crucial when "solving a triangle" by calculating the unknown angles or sides. The ratio of a triangle's side lengths to the sine of each of its opposite angles must be equal in order for the sine rule to apply. Triangle side length ratios to their corresponding opposite angles are connected by the law of sines. All three sides and the diagonal angles maintain the same ratio.
Given that ∠A= 54° ,∠C= 59° & side BC=a=11
We know that ∠A + ∠B + ∠C = 180° {angle sum property}
Consider △ABC,
54° + 59° + ∠B = 180°
113° + ∠B = 180°
∠B = 180°- 113°
∠B = 67°
Applying Sine-Law,
[tex]\frac{A}{sin\ A} =\frac{B}{sin\ B} = \frac{C}{sin\ C}[/tex]
By using,
[tex]\frac{A}{sin\ A} =\frac{B}{sin\ B}[/tex] , we get:
[tex]\frac{11}{sin\ 54} =\frac{B}{sin\ 67}\\ \\\frac{11}{0.80901} =\frac{B}{0.92050} \\\\B=\frac{11}{0.80901} \times 0.92050[/tex]
B = 13.59686 x 0.92050
B = 12.5159
B = 12.516
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Refer to the attachment for the complete question.
Help Please I need this answer soon
The solution for the value of x is 55.
How to solve for the value of x?Since the segments of the secant segment and the tangent segment share an endpoint outside of the circle.
According to Tangent-Secant Theorem, the product of the lengths of the secant segment and its external segment equals the square of the length of the tangent segment. That is:
x² = 5 * (5 + 6)
x = 5 * 11
x = 55
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Answer is D.
Can anyone explain why??
The true statement regarding the hypothesis will be:
II. A 95 percent confidence interval for the difference in means will contain the value 0.III. A 99 percent confidence interval for the difference in means will contain the value 0.The correct option is D II and III only.
How to explain the hypothesisA two-sample t-test of the hypotheses Hoμ1-2 = 0 versus H 41-μ2> 0 produces a p-value of 0.03.
In this case, a 95 percent confidence interval for the difference in means will contain the value 0.
Also, a 99 percent confidence interval for the difference in means will contain the value 0.
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What is the straight line distance in miles between estebans house and the tower a ll b 17 c29 d41 e61
Answer:
I Thick it A 11 if i'm Wrong SorryHave a Nice Best Day : )
HELPP
Find the area of this shape:
Answer:
67 [tex]ft^{2}[/tex]
Step-by-step explanation:
Divide the shape into more recognizable shapes.
5*7 = 35
7*4 = 28
35+28
67
jessica purchased a large cookie in the shape of a spring peep. After arriving home, she ate part of the cookie and had 1/4 remaining. She decided to give the rest of her cookie to her three sisters to let them share equally. What fraction of the original cookie will each of her sisters get to eat?
The amount of cookie each sister receives is A = 1/12
Given data ,
Let the amount of cookie each sister receives be A
Now , the equation is
If Jessica ate a part of the cookie and had 1/4 remaining, then she ate 3/4 of the original cookie
Since she wants to give the remaining 1/4 of the cookie to her three sisters to share equally, each sister will receive 1/3 of that 1/4
To find the fraction of the original cookie that each sister will receive, we need to multiply the fraction received by the fraction of the cookie that is left
(1/3) x (1/4) = 1/12
Hence , each sister will receive 1/12 of the original cookie to eat
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Question 10 of 30
Which graph shows the line y = 2x+3?
A. Graph A
B. Graph B
OC. Graph C
D. Graph D
Which of the following best describes the graph below?
Answer:
B. It is not a function.
This graph is a circle.
PLEASE HELP ME!
Jessica has 400 cm^3 of material. She uses 35cm^3 to make a right triangular prism. She wants to make a second prism that is a dilation of the first prism with a scale factor of 2.5
How much more material does Jessica need in order to make the second prism?
Answer:
181.875 cm³
Step-by-step explanation:
You want to know the amount of additional material Jessica needs to make a prism with a volume of 35 cm³ and one that is dilated by a factor of 2.5, given that she has 400 cm³ of material.
Larger volumeThe dilation factor for volume is the cube of the linear dilation factor:
2.5³ = 15.625
so the volume of the scaled-up prism will be ...
(35 cm³) × 15.625 = 546.875 cm³
Total volumeThe total volume of material Jessica needs for the two prisms is ...
35 cm³ + 546.875 cm³ = 581.875 cm³
NeededSince Jessica has 400 cm³ of material, the amount she needs is ...
581.875 cm³ - 400 cm³ = 181.875 cm³
Jessica needs 181.875 cm³ more material to make the second prism.
a survey was given to 318 students at east river high school asking what their grade point average (gpa) was. which is the best graphical representation to display the data?
The best graphical representation to display the data on the GPA of 318 students at East River High School would be a histogram.
What is a histogram?A histogram is a graphical representation of data that groups data into bins or intervals and displays the frequency of occurrences of data within each bin. In this case, the bins would represent GPA ranges, and the frequency would represent the number of students falling within each GPA range.
A histogram is a good choice for displaying this data because it allows the viewer to see the distribution of GPA scores across the student population. It provides a visual representation of how many students fall within certain GPA ranges and can help identify trends in the data.
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3-6 You can determine the slope of a roof using a flat board, a bubble level and a ruler,or a sight card can be used. (True or False)
Given statement "3-6 You can determine the slope of a roof using a flat board, a bubble level and a ruler,or a sight card can be used." is true. Because flat board, a bubble level and a ruler,or a sight card methods are commonly used to determine the slope of a roof, and both are effective.
Determining the slope of a roof is an important task for many construction and roofing projects.
One method to determine the slope of a roof is to use a flat board, a bubble level, and a ruler.
First, place the flat board horizontally on the roof surface, and use the bubble level to make sure it is level.
Then, measure the distance between the bottom of the board and the roof surface at the point where the board intersects with the roof using the ruler. This distance is the rise.
Next, measure the distance from the point where the board intersects with the roof to the end of the board using the ruler. This distance is the run. Finally, divide the rise by the run to get the slope.
Another method to determine the slope of a roof is to use a sight card. A sight card is a specially designed tool that can help to measure the angle of a slope or pitch. The sight card is held at the bottom of the roof and lined up with a known vertical or horizontal line, such as the edge of a building.
Statement is true.
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i will give brainliest help
Answer:
[tex]0.42[/tex]÷[tex]7[/tex]
Step-by-step explanation:
First, let's count the number of colored squares in the hundredth-grid.
There are a total of 42 hundredth-squares.
Since this is measured in hundredths, the number it represents is 0.42.
Each of the different colors represents a separate group that 0.42 is being divided into. There are 7 separate groups.
Since 0.42 is being divided into 7 groups, the equation that is being represented is:
[tex]0.42[/tex]÷[tex]7[/tex]
Two similar solids have edges of 4 feet in 24 feet if the smaller saw that has a volume of 16 ft.³ find the volume of the other solid?
The volume of the other solid (Solid B) is 3456 cubic feet.
How to solve for the volumeSolid A has edges of 4 feet, and its volume is given as 16 cubic feet. Solid B has edges of 24 feet.
Since the solids are similar, they have the same shape, and their corresponding lengths are proportional. To find the ratio of their corresponding lengths, we can divide the length of an edge of Solid B by the length of an edge of Solid A:
Ratio = (length of edge of Solid B) / (length of edge of Solid A)
Ratio = 24 feet / 4 feet
Ratio = 6
Now that we have the ratio of their corresponding lengths, we can find the ratio of their volumes. The ratio of the volumes of similar solids is the cube of the ratio of their corresponding lengths:
Volume ratio = (length ratio)³
Volume ratio = 6³
Volume ratio = 216
Now we can use the volume ratio to find the volume of Solid B:
Volume of Solid B = (Volume of Solid A) × (Volume ratio)
Volume of Solid B = 16 ft³ × 216
Volume of Solid B = 3456 ft³
So, the volume of the other solid (Solid B) is 3456 cubic feet.
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A rectangle has a perimeter of
90" and an area of 200" squared.
What are the dimensions of the
rectangle?
The dimensions of the rectangle are either 25" by 8" or 20" by 10".
What is perimeter and area?The perimeter of a two-dimensional shape is the space surrounding it. It is calculated using length units like inches or metres. The lengths of all the sides of a rectangle are added up to determine its perimeter.
Area is a unit used to describe how much room there is inside a two-dimensional form. It is calculated using area units like square inches or square metres. A rectangle's area is calculated by multiplying its length by its width.
The perimeter of the rectangle is given as:
Perimeter = 2(length + width)
Substituting the value we have:
90 = 2(L + W)
45 = L + W
Now, the area is given as:
Area = length × width
Substituting the values we have:
200 = L × W
The above equation can be written as:
W = 200/L
Substituting the value of W in the first equation we have:
45 = L + 200/L
45L = L² + 200
L² - 45L + 200 = 0
L = (45 ± √(45² - 4×1×200)) / (2×1)
L = (45 ± 5) / 2
L = 25 or L = 20
Now, for L = 25 the value of W is:
W = 200 / 25 = 8
For L = 20:
W = 200 / 20 = 10
Hence, the dimensions of the rectangle are either 25" by 8" or 20" by 10".
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Simplify. 3x5/6 A.15/6 B.23/6 C.2 2/1 D. 3 5/6
Therefore, expression 3x5/6 simplifies to 3 5/6.
What is expression?In mathematics, an expression is a combination of symbols and/or numbers that represents a quantity or a mathematical relationship between quantities. Expressions can be simple or complex, and can involve arithmetic operations, algebraic operations, functions, and variables. Expressions can be evaluated, simplified, and manipulated using mathematical rules and operations to obtain new expressions or values.
Here,
To simplify 3x5/6, we can rewrite it as (3/1) × (5/6). Multiplying the numerators and denominators, we get:
(3/1) × (5/6) = 15/6
= 2 3/6
Since 3/6 can be simplified to 1/2, we have:
2 3/6 = 2 1/2
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Determine the solutions to the equation x^2 = 4x + 41.
Answer:
The solutions to the equation x^2 = 4x + 41 are x = 2 + 2sqrt(11) and x = 2 - 2sqrt(11).
Step-by-step explanation:
To solve the equation x^2 = 4x + 41, we can first rearrange it as x^2 - 4x - 41 = 0.
Next, we can use the quadratic formula:
x = (-b ± sqrt(b^2 - 4ac)) / 2a
where a, b, and c are the coefficients of the quadratic equation. In this case, a = 1, b = -4, and c = -41.
Substituting these values into the formula, we get:
x = (4 ± sqrt((-4)^2 - 4(1)(-41))) / 2(1)
Simplifying:
x = (4 ± sqrt(176)) / 2
x = (4 ± 4sqrt(11)) / 2
x = 2 ± 2sqrt(11)
Therefore, the solutions to the equation x^2 = 4x + 41 are x = 2 + 2sqrt(11) and x = 2 - 2sqrt(11).
Please answer part b
Taking the quotient between the total volume and the flow rate, we can see that the correct option is D.
For how long has Jeremy been watching the falls?We know that water flows at a rate of 1.5*10^4 gallons per second. We know that 6.525*10^6 gallons flowed while Jeremy was watching, then the time that he has been watching is the quotient between these values, we will get:
time = ( 6.525*10^6)/(1.510^4) seconds = (652.5/1.5) second = 435 seconds
We know that 60 secons = 1 minute, then:
435/60 = 7 + 15/60
So he has been watching for 7 minutes and 15 seconds, the correct option is D.
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The distance, y, in miles, that Taryn is from home after x hours of driving
is represented by y = 60 - 45x. Which two statements accurately
describe Taryn's distance from home?
(A) She started 45 miles from home
(B) Here, distance from home decreases by 60 miles per hour.
(C) Her distance from decreased by 45 miles per hour
(D) She started 60 miles from her home.
Answer:
(C) and (D) are correct.
I NEED HELP ON THIS ASAP!!!
The exponential function f(x) = 2^x is given by the blue graph on the given graph.
What is an horizontal asymptote?The horizontal asymptote of a function is the value of f(x) as x goes to infinity, as long as this value is different of infinity.
The function in this problem is defined as follows:
y = 2^x.
Two relevant numeric values are given as follows:
When x = -1, y = 2^(-1) = 1/2 = 0.5.When x = 0, y = 2^0 = 1.Hence the function is represented by the blue graph.
The horizontal asymptote is of y = 0, as when x goes to negative infinity, y goes to zero.
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(ASAP!) Graph the image of the figure on the right under the given translation.
The translation is as shown in the figure in option B
What is translation transformation?Translation transformation is a type of geometric transformation that moves every point of a figure the same distance and direction. This transformation does not change the size, shape, or orientation of the figure, but only its position in space.
The transformation required ahs the rule defined as
3 units to the right and 4 unit upApplying the rule arrives the image in option B
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A rectangular hotel room is 3 meters by 8 meters. The owner of the hotel wants to recarpet the room with carpet that costs $33.38 per square meter. How much will it cost to recarpet the room?
The amount it will cost to recarpet the the whole room is $891.12
What is area ?The area of a shape is the space occupied by the boundary of a plane figures like circles, rectangles, and triangles.
For example, the area of a circle is given as: A = πr², where r is the radius and π is constant.
The room takes the shape of a rectangle, therefore,
Area of the room = l× w, where l is the length and w is the width.
Area = 3×8 = 24 m²
The cost of 1m² = $33.38
therefore the cost for 24m²
= 24× 33.8
= $801.12
therefore the cost to recarpet the room is $801.12
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10. Jill's bank statement shows a balance of $539.22. Checks outstanding were #841 for $29.67, #843 for $89.02, and #844 for $9.76. A $130 deposit was outstanding. Reconcile Jill's bank statement.
Answer:
Step-by-step explanation:
539.22 dollars
Find the quotient. Assume that no denominator has a value of 0.
5x^2/7÷10x^3/21
The quotient of the expression 5x^2/7÷10x^3/21 is 3/(2x)
Finding the quotient of the expressionFrom the question, we have the following parameters that can be used in our computation:
5x^2/7÷10x^3/21
Assume that no denominator has a value of 0, we have
5x^2/7÷10x^3/21 = 5x^2/7 ÷ 10x^3/(7 * 3)
Express as products
So, we have the following representation
5x^2/7÷10x^3/21 = 5x^2/7 * (7 * 3)/10x^3
When the factors are evaluated, we have
5x^2/7÷10x^3/21 = 5 * 3/10x
So, we have
5x^2/7÷10x^3/21 = 15/10x
This gives
5x^2/7÷10x^3/21 = 3/(2x)
Hence, the solution is 3/(2x)
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Prueba de unidad Stacia necesita3 9bombillas para cada3candelabros que ella hace Completa la tabla usando razones equivalentes. Número de bombillas Número de candelabros 39 3 4 10 Informar d
The simplified ratio is 3 light bulbs for every 1 chandelier.
How to explain the ratioIt should be noted that to find equivalent ratios, we need to multiply or divide both the numerator and denominator of the ratio by the same number.
In this case, the ratio is 9 light bulbs for every 3 chandeliers, which can be simplified by dividing both the numerator and denominator by 3:
9 light bulbs ÷ 3 = 3 light bulbs
3 chandeliers ÷ 3 = 1 chandelier
So the simplified ratio is 3 light bulbs for every 1 chandelier.
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Stacia needs 9 light bulbs for every 3 chandeliers she makes Complete the table using equivalent ratios.
what is the probability of winning a giveaway with 73 entries and 2 winners
(1 entry = 1 person)
The probability of winning a giveaway with 73 entries and 2 winners is the fraction 2/73.
What is probabilityThe probability of an event occurring is the fraction of the number of required outcome divided by the total number of possible outcomes.
The total possible outcome = 73
the event of winning = 2
probability of winning the giveaway = 2/73
This means that each winner has a 2/73 chance of winning the giveaway.
Therefore, the probability of winning a giveaway with 73 entries and 2 winners is the fraction 2/73.
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example of definition of derivative:lim as h approaches 0f(a+h) - f(a) / hThe slope of f(x) = -3x^2 +11 at any value of x
The slope of the function f(x) = -3x^2 +11 at any value of x is given by 6x.
The definition of derivative is given by the limit as h approaches 0 of [f(a+h) - f(a)] / h,
where f(x) is a function and a is a fixed value of x.
To find the slope of the function[tex]f(x) = -3x^2 +11[/tex] at any value of x, we need to use this definition of derivative.
So, let's plug in f(x) = -3x^2 +11 and a = x into the formula.
This gives us:
lim as h approaches 0 of [tex][-3(x+h)^2 + 11 - (-3x^2 + 11)] / h[/tex]
Simplifying this expression, we get:
lim as h approaches 0 of [tex][-3x^2 - 6hx - 3h^2 + 11 + 3x^2 - 11] / h[/tex]
Combining like terms, we get:
lim as h approaches 0 of [tex][-6hx - 3h^2] / h][/tex]
Factoring out an h from the numerator, we get:
lim as h approaches 0 of [-h(6x + 3h)] / h
Canceling out the h in the numerator and denominator, we get:
lim as h approaches 0 of 6x + 3h
Now, we can plug in h = 0 to find the slope of the function at any value of x:
6x + 3(0) = 6x.
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