Answer:
-0.72
Step-by-step explanation:
(-.3)(-.2)= -0.06
(-.06)(12) = -0.72
I NEED HELP WITH AN ALEK'S TOPIC WILL GIVE BRAINEST IF HELPED AND DON'T DO IT FOR THE POINTS!!!
Answer:
21/32
Step-by-step explanation:
(Surface Area of Cylinders MC)
Determine the exact surface area of the cylinder in terms of π.
cylinder with radius labeled 1 and one fourth centimeters and a height labeled 3 and three fourths centimeters
39 and one fourth times pi square centimeters
14 and one sixteenth times pi square centimeters
12 and one half times pi square centimeters
10 and 15 sixteenths times pi square centimeters
The surface area of a cylinder can be found by adding the areas of the top and bottom circles, as well as the area of the side (lateral) surface.
The radius of the cylinder is 1 and one fourth centimeters, which can be written as 5/4 cm. The height of the cylinder is 3 and three fourths centimeters, which can be written as 15/4 cm.
The area of each circle is πr^2, where r is the radius. So, the area of the top and bottom circles is:
2π(5/4)^2 = 25/2 π square centimeters
The lateral surface area of a cylinder is given by the formula 2πrh, where r is the radius and h is the height. So, the lateral surface area of the cylinder is:
2π(5/4)(15/4) = 75/2 π square centimeters
Therefore, the total surface area of the cylinder is:
25/2 π + 75/2 π = 100/2 π = 50 π square centimeters
So, the exact surface area of the cylinder in terms of π is 50π square centimeters. None of the given options matches this answer.
Which of the following equations defines y as a function of x?
Answer:
Step-by-step explanation:
the answer would be D
we can rewrite the function as F(y) = y^2. notice that this function is written as F(y) rather than F(x). if this were a function of y we would write it as F(x)= squareroot(x)
the difference between a function of x and a function of Y is that in a Function of x the x value will be isolated and in a function of y the y value will be isolated.
The first angle in a triangle the measure of the first angle is three times that of the second angle. The second angle is two times that of the third angle. Find the ratio of the angles in the triangle.
Answer
6;2;1
Step-by-step explanat
first angle is three times that of the second angle.
second angle is two times that of the third angle.
so first angle is 6 times that of the 3rd angle.
so 6;2;1
Please I need help Asp please help me solve the equation in the picture below also please show steps on how to solve
Answer:
[tex]x=-6\dfrac{7}{8}[/tex]
Step-by-step explanation:
[tex]Solve\:9\:\dfrac{1}{4}\:+\:x\:=\:2\:\dfrac{3}{8}[/tex]
Step 1:
Convert all mixed fractions to improper fractions.
This will make it easier to add and subtract
Mixed fraction [tex]a\dfrac{b}{c}[/tex] can be converted to an improper fraction using
[tex]a\dfrac{b}{c}=\dfrac{a\cdot \:c+b}{c}[/tex]
[tex]9\dfrac{1}{4}=\dfrac{9\cdot 4+1}{4} = \dfrac{37}{4}[/tex]
[tex]2\dfrac{3}{8}=\dfrac{2\cdot 8+3}{8} =\dfrac{19}{8}[/tex]
Step 2:
Replace every mixed fraction in the original equation with its equivalent improper fraction:
[tex]\dfrac{37}{4}+x=\dfrac{19}{8}[/tex]
Step 3
Solve for x
ILL GIVE BRAINLIEST AND 50 POINTS TO CORRECT ANSWER
x = a + b + 4
a ∝ y^2, b ∝ 1/y when x = 18, y = 2 and when x = -3, y = 1 then find x when y = 4.
TYVM!!
Answer:
81
Step-by-step explanation:
Given the relationships \(a \propto y^2\) and \(b \propto \frac{1}{y}\), let's solve for the proportionality constants and then use them to find \(x\) when \(y = 4\).
From the given values:
1. When \(x = 18\) and \(y = 2\), we have \(a + b + 4 = 18\).
2. When \(x = -3\) and \(y = 1\), we have \(a + b + 4 = -3\).
We can set up two equations using the given proportionalities and the given values:
Equation 1: \(a = ky^2\)
Equation 2: \(b = \frac{c}{y}\)
Substituting these into the first given condition:
\(ky^2 + \frac{c}{y} + 4 = 18\)
Substituting these into the second given condition:
\(ky^2 + \frac{c}{y} + 4 = -3\)
Solving these two equations will allow us to find the constants \(k\) and \(c\), and then we can use them to find \(x\) when \(y = 4\).
Let's solve the equations:
From the first equation:
\(k(2^2) + \frac{c}{2} + 4 = 18\)
\(4k + \frac{c}{2} + 4 = 18\)
\(4k + \frac{c}{2} = 14\)
From the second equation:
\(k(1^2) + \frac{c}{1} + 4 = -3\)
\(k + c + 4 = -3\)
\(k + c = -7\)
Now we have a system of two equations:
1. \(4k + \frac{c}{2} = 14\)
2. \(k + c = -7\)
Solve the second equation for \(k\): \(k = -c - 7\)
Substitute this into the first equation:
\(4(-c - 7) + \frac{c}{2} = 14\)
\(-4c - 28 + \frac{c}{2} = 14\)
\(-8c - 56 + c = 28\)
\(-7c = 84\)
\(c = -12\)
Substitute \(c\) back into \(k + c = -7\):
\(k - 12 = -7\)
\(k = 5\)
Now that we have \(k\) and \(c\), we can determine the values of \(a\) and \(b\) using the given proportionalities:
\(a = 5y^2\)
\(b = \frac{-12}{y}\)
Finally, substitute these values of \(a\), \(b\), and \(y\) into the equation \(x = a + b + 4\) to find \(x\) when \(y = 4\):
\(x = 5(4^2) + \frac{-12}{4} + 4\)
\(x = 80 - 3 + 4\)
\(x = 81\)
So, when \(y = 4\), \(x\) is 81.
Match the verbal expression with its algebraic expression. (10 points)
Group of answer choices
b + 2
[ Choose ]
x − 2
[ Choose ]
2z
[ Choose ]
a ÷ 2
[ Choose ]
y2
[ Choose ]
Answer:
Could you specify it more pls?
Step-by-step explanation:
HELP PLS THANKSSSSSSSSS
Answer:
I think it is 2,304
Step-by-step explanation:
Write a two-step equation that involves division and
addition and has a solution of x = -25
Answer: look at the image for the answer and the explanation
Step-by-step explanation:
What is the value of m∠3, in degrees, if m∠5 = 70° and m∠2 = 60°?
Answer:
m<3 = 50 degrees
Step-by-step explanation:
All the angles of a triangle must add up to 180, or else it isn't a triangle
So, 70 + 60 + m<3 = 180
130 + m<3 = 180
m<3 = 180 - 130
m<3 = 50
Answer:
50 degrees
Step-by-step explanation:
Estimate if this angle is acute or obtuse.
A. obtuse
B. acute
Answer:
Obtuse
Step-by-step explanation:
If the angle if greater than 90⁰ then it is an obtuse angle
If the angle is less than 90⁰ then it is an acute angle
Hope this helps!
Answer:
Obtuse
Step-by-step explanation:
Obtuse is past 90º
Acute is below 90º
This is past 90º, so it is Obtuse.
HOPE THIS HELPED! HAVE A GOOD DAY!
Need answer asap pls and ty, will give brainly if right
Answer:
x = 90,
3x = 270
Step-by-step explanation:
We have a polygon that has 6 sides. We need to use the formula [tex]S=(n-2)*180[/tex] so we can create an algebraic equation to solve for x.
n = number of sides
[tex]S=(6-2)*180[/tex]
Evaluate
[tex]S=720[/tex]
Now we need to create an algebraic equation to find the value of x.
[tex]3x + x +45+135+45+135=720[/tex]
Add like terms
[tex]4x+360=720[/tex]
Subtract 360 on both sides
[tex]4x=360[/tex]
Divide by 4
[tex]x=90[/tex]
The value of x = 90.
To solve for 3x, the equation means 3 * x. We know what x is, so we just plug in 90.
[tex]3*90=270[/tex]
[tex]3x=270[/tex]
To check our work, add up all angle measures to see if they add up to 720.
[tex]270+90+45+135+45+135=720[/tex]
Lin wants to get some custom t-shirts printed for her basketball team. If `10` or fewer shirts are ordered, each t-shirt costs `$10`. If `11` or more shirts are ordered, each cost `$9`.
1) Create a graph that shows the total cost of buying shirts, for `0` through `15` shirts.
2) There are `10` people on the team. Do they save money if they buy an extra shirt?
a) Yes
b) No
The volume of the cylinder is 62.83 cubic cm and the volume of. the cone is 20.94 cubic cm.
What is volume?In mathematics, volume is the space taken by an object. Volume is a measure of three-dimensional space. It is often quantified numerically using SI derived units or by various imperial or US customary units. The definition of length is interrelated with volume.
here, we have,
We know that,
It should be noted the to calculate the volume of a cylinder, we can use the formula V = πr²h, where r is the radius and h is the height. In this case, the height and radius of the cylinder and cone are the same.
For the cylinder:
Volume = π(2cm)²(5cm)
V = 20π
For the cone, we can use the formula
V = (1/3)πr²h:
V = (1/3)π(2cm)²(5cm)
V = 20/3π cubic cm (exact value)
Hence, to get an approximate decimal value, we can use a calculator to evaluate:
Volume of cylinder ≈ 62.83 cubic cm
Volume of cone ≈ 20.94 cubic cm
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Complete question:
A cylinder and cone have the same height and radius. The height of each is 5 cm, and the radius is 2 cm. Calculate the volume of the cylinder and the cone. Enter your answers as a whole number or fraction
Cylinder:
π cm3
Cone:
π cm3
Flag question: Question 2
Question 21 pts
The volume of this cone is cubic units.
A drawing of a cone.
What is the volume of a cylinder that has the same base area and the same height?
π
Flag question: Question 3
Question 31 pts
A cylinder has a diameter of 6 cm and a volume of cm3.
Sketch the cylinder.
Find its height and radius in centimeters.
Label your sketch with the cylinder's height and radius.
Radius:
cm Height:
cm
Flag question: Question 4
Question 41 pts
Lin wants to get some custom T-shirts printed for her basketball team. Shirts cost $10 each if you order 10 or fewer shirts and $9 each if you order 11 or more shirts.
1. Make a graph that shows the total cost of buying shirts, for 0 through 15 shirts.
2. There are 10 people on the team. Do they save money if they buy an extra shirt? Explain your reasoning.
No
3. What is the slope of the graph between 0 and 10? What does it mean in the story?
The slope is
5
which represents the
Shirts per $1
for the first 10 shirts
4. What is the slope of the graph between 11 and 15? What does it mean in the story?
The slope is
7
which represents the
Price per 1 shirt
for 10-15 shirts
Flag question: Question 5
Question 51 pts
In the following graphs, the horizontal axis represents time and the vertical axis represents distance from school. Match a possible story to each graph.
Group of answer choices
Left graph
A student leaves school and walks to a friend’s house that is halfway between school and their house. After spending some time at a friend’s house, the student continues walking home.
Center graph
An athlete leaves school to go home for a while, then returns to school for a game later in the evening.
Right graph
A parent starts from their workplace and drives directly to school to pick up their daughter.
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A sculpture is made of solid nickel in the shape of a cone. The sculpture is 84 inches tall, and its base has a diameter of 16 inches. If nickel costs $2.25 per cubic inch, how much did the nickel for the sculpture cost?
Use 3.14 for pi, and do not round your answer.
The total cost of the nickel for the sculpture is $12,660.48.
We know that the volume of a cone is:
v = 1/3πr²h ......(i)
where r ⇒ radius of the cone
h ⇒ height of the cone
Now, as per the question,
r = diameter/2 = 16÷2 = 8 inches
h = 84 inches
Putting the values in equation (i)
v = 1/3 × 3.14 × (8)² × 84
v = 5626.88 cubic inch
The cost given for nickel = $2.25 per cubic inch
So, the total cost for the nickel used in making the sculpture:
the volume of cone × cost per cubic inch
5626.88 × 2.25 = $12,660.48
Therefore, the total cost for the nickel used is $12,660.48
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please help me with this
Answer:
Below
Step-by-step explanation:
The last choice is false....linear functions can have positive or negative slopes
Please help me out on this one....
Answer:
Step-by-step explanation:
1)first lets figure what the rate at which they are traveling is. we know that the have traveled 1 and 3/4 miles in 2 and 1/3 minutes. lets now convert this to miles per 1 minute. we can find this by taking our distance traveled and dividing it by out time taken.
(1 and 3/4) / (2 and 1/3)= .75 or (3/4)
2) now we can take this number and multiply it by 33 minutes to get 24.75 miles
3) we can then multiply .75 by 60 minutes to get that the care has traveled 45 miles in 1 hour.
Answer:
)first lets figure what the rate at which they are traveling is. we know that the have traveled 1 and 3/4 miles in 2 and 1/3 minutes. lets now convert this to miles per 1 minute. we can find this by taking our distance traveled and dividing it by out time taken.
(1 and 3/4) / (2 and 1/3)= .75 or (3/4)
2) now we can take this number and multiply it by 33 minutes to get 24.75 miles
3) we can then multiply .75 by 60 minutes to get that the care has traveled 45 miles in 1 hour.
Camelle manages her soccer team. She needs to order
4 practice jerseys for each player. There are
�
y players.
How many total practice jerseys does she need to order?
Write your answer as an expression.
Answer:
the expression would be
x=4 X y
help me pls thanks :)
Answer:
1206.3715789785 feet3
Step-by-step explanation:
Volume =
1 πr2h
3
=
1 ×π×122×8
3
= 384π
= 1206.3715789785 feet3
that is how
Answer:
Step-by-step explanation:
Given,
r = 12 ft
H = 8
We know,
Volume = 1πr2H
= 1.π.12.2.8 = 603.186(approx.)
That's the answer!Hope you'll find it helpful!
Multiple choice question. Due in 5 hours.
Answer: A
Step-by-step explanation:
cakes = x pies = y
total number of cakes and pies sold: 75
so x + y = 75
Total money earned: $340
so $4 of x amount cakes + $5 of pies sold =$340
So,
x + y = 75
4x + 5y = 340
Can someone please he\p?
Answer:
C. -6.1, -6 4/9, 6.3..., 630%
Step-by-step explanation:
-6.1 in mixed number form is -6 1/10, making it greater than -6 4/9. This is because, if the numbers were positive, -6 4/9 would be greater than -6.1, but since the numbers are negative, it's opposite.
Therefore, the answer is:
C. -6.1, -6 4/9, 6.3..., 630%
Have a nice day and your welcome! Mark brainliest! <3
please please pleaseeee help I beg you ill give 25 points please
Answer:nonlinear i think
Step-by-step explanation:
Can Someone please help ?
Answer: The Answer would be-
4.83
Step-by-step explanation:
4 5/6 as a decimal is 4.83
A college radio station surveyed 143 incoming freshmen to gather information about the genres of music that they like. The table below gives the results for two of the genres.
Answer:
62 26 80
Step-by-step explanation:
Jenny runs each lap in 8 minutes. She will run less than 96 minutes today. What are the possible numbers of laps she will run today?
Use n for the number of laps she will run today. Write your answer as an inequality solved for n.
Answer:
12 ≥ n
Step-by-step explanation:
8 minutes a lap is EXTREMELY slow, what is she doing? Crawlling?
96/8 ≥ n
12 ≥ n
Answer:
12 laps.
Step-by-step explanation:
If she runs 8 minutes a lap and she runs 96 minutes in total then all you have to do is divide 96 by 8.
96÷8=12
Name the Complimentary Pair?
Please help me with this anybody
Answer:
The perimeter of this shape is 61.6
Step-by-step explanation:
There are no clear instructions for this question, but the perimeter should be the answer above. I added all side lengths to get this.
whats the volume of this pyrimd pls i'll give you 20 pointtss
Answer: V = 4ft^3
Step-by-step explanation:
Please help me solve the picture below.Also please show the steps on how you solved
Which expression is equivalent to 2(y+4) + 3(x+2x)
A. 2y + 8 + 9x
B. 2y + 4 + 9x
C: 2y + 4 + 5x
D: 2y + 8 + 5x
For an equation of the form ax^2 + bx+ c = 0, where the graph crosses the y-axis once and does not intersect the x-axis. Describe the solution(s) of the equation.
(picture)
Answer:a
Step-by-step explanation:
The solution to the equation ax² + bx + c = 0 , has a graph that crosses the y-axis once and does not intersect the x-axis, then the equation has one real root and two complex conjugate roots that lie on either side of the axis of symmetry.
What is Quadratic Equation?A quadratic equation is a second-order polynomial equation in a single variable x , ax² + bx + c=0. with a ≠ 0. Because it is a second-order polynomial equation, the fundamental theorem of algebra guarantees that it has at least one solution. The solution may be real or complex.
The roots of the quadratic equations are
x = [ -b ± √ ( b² - 4ac ) ] / ( 2a )
where ( b² - 4ac ) is the discriminant
when ( b² - 4ac ) is positive, we get two real solutions
when discriminant is zero we get just one real solution (both answers are the same)
when discriminant is negative we get a pair of complex solutions
Given data ,
Let the quadratic equation be represented as A
Now , the value of A is
If the graph of the equation ax² + bx + c = 0 crosses the y-axis once, it means that the equation has one real root. This is because when x = 0, the equation becomes:
c = 0² + 0 + c = c
Therefore, the point (0, c) is on the y-axis, which means the graph crosses the y-axis once.
If the graph does not intersect the x-axis, it means that the discriminant b² - 4ac is negative. This is because the discriminant determines the nature of the roots of a quadratic equation, and when it is negative, the roots are complex (not real) and the graph does not intersect the x-axis.
So, the solution(s) of the equation ax² + bx + c = 0 are:
x = (-b ± √(b² - 4ac)) / 2a
Since the discriminant is negative, the term inside the square root is negative, and there are no real solutions for x. Instead, the solutions are complex conjugates of the form:
x = (-b ± i√(4ac - b²)) / 2a
where i is the imaginary unit. Since the real part of these solutions is -b/2a, which is the axis of symmetry of the parabola, and the parabola does not intersect the x-axis, the complex roots will be a conjugate pair that lie on either side of the axis of symmetry.
Hence , the quadratic equation is solved
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