Answers
Answer:
Volume of a cylinder = πr²h
Given
V=81π
r=3
find h
Making h the subject
h= V/πr² = 81π/π(3)²
h= 81/9
h= 9cm
Related Questions
A cube with an edge length of 10 must be filled completely. How many cubic centimeters will be needed? Type
your answer in the box.
A cm3
Answers
Answer: 1,000 cm^3
Step-by-step explanation:
Volume of cube= bhw
All sides of a cube are equivalent so 10^3= 1000
https://www.blooket.com/play?id=658244
Copy and paste
All right answers
Appropriate names please!!
Answers
Answer:
ok
Step-by-step explanation:
Which equations are true? Choose all that apply.
A. 15^0=15
B. (8^3) (8^6)= 8^9
C. 5^2 = 1/5-3
D. (6^5)^3 = 6^15
E. 3^7/3^9 = 3^-2
Answers
Answer:
B, D, E
Step-by-step explanation:
A) anything to the zero power equals one
B) when bases are the same and being multiplied, add their exponents
C) 5² = 25
D) when parentheses separate exponents, they should be multiplied
E) when bases are the same being divided, subtract their exponents
Find X. It’s a right triangle
Answers
Answer:
7.64
Step-by-step explanation:
use tangent (opposite over adjacent)
tan27=x/15
multiply both sides by 15 to isolate the x
15tan27=x
use a calculator
answer = 7.64
If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from the
second equation is substituted into the first equation
3x + 2y = -21
x - 3y = 4
3(3y + 4) + 2y = -21
3(-3y + 4) + 2y = -21
3x + 2(3y + 4) = -21
3x + 2(-3y + 4) = -21
Answers
Answer:
answer is
3(3y+4) + 2y = -21 .
if the value of a in the quadratic function f(x) = ax^2 + bx + c is 1/2, the function will:
Answers
Answer:
Open up and have a minimum
Step-by-step explanation:
If the x² coefficient is:
Positive, the graph will open up and have a minimum
Negative, the gaph will open down and have a maximum
Answer:
opens up and has a minimum
Step-by-step explanation:
Provided a is not 0, y=ax^2+bx+c will be a parabola.
The parabola will open up and have a minimum if a is positive.
The parabola will open down and have a maximum if a is negative.
Since 1/2 is positive, then your parabola opens up and has a minimum.
Please help, I don’t know what I’m supposed to do
Answers
It’s B: -10
Explanation:
Since it dropped 45, you just needed to subtract from 35.
A cookie recipe calls for 3 cup of chocolate chips for every batch, and the baker can mix and
bake a batch every of an hour. How many cups of chocolate chips would the baker use if he
baked cookies for 6 hours?
Answers
Answer:
i think 18
Step-by-step explanation:
bc like 3 cups-1 hour
6 cups- 2 hours
...... .........
Angel lives 3/4 miles from school he has already walked 1/6 mile. How much farther does angel need to walk to school
Answers
Answer:
7/12 miles
Step-by-step explanation:
3/4 and 1/6
find common denominator
9/12 and 2/12
subtract
7/12
Workers are using a nuke to carry equipment to work site. A mule can carry one bag of gravel that weighs 13 kilograms and some wooden posts. Each post weighs 4.5 kilograms.
What’s is the greatest number of wooden posts the mule can carry?
Please help
Answers
Because we know that a mule can carry ≈13kgs and each pole is 4.5 kg, so we do:
13/4.5≈ 2.88888889...≈ 3 wooden posts.
Answer:
14
Step-by-step explanation:
4.
Find the x- and y-intercept of the line.
2x + 3y = -18
Answers
Hi there!
»»————- ★ ————-««
I believe your answer is:
X - Intercept: (-9, 0)
Y - Intercept: (0, -6)
»»————- ★ ————-««
Here’s why:
The x and y-intercepts of a line is where a given function intercepts the x or y axes.
I have graphed the equation given on a program. The graph shows that the line passes through the points (0, -6) and (-9, 0).
Therefore:
[tex]\rightarrow\text{The x-intercept of the given equation is }\boxed{\text{(-9,0)}}.\\\\\rightarrow\text{The y-intercept of the given equation is }\boxed{\text{(0,-6)}}.[/tex]
See the graph attached below!
»»————- ★ ————-««
Another way to solve this problem is to do this algebraically.
[tex]\text{X-Intercept: Substitute the 'y' variable for zero and solve for 'x'.}\\\\2x + 3y = -18\\-------\\\rightarrow2x+3(0)=-18\\\\\rightarrow2x=-18\\\\\rightarrow\frac{2x=-18}{2}\\\\\rightarrow\boxed{x=-9}\\-------\\\boxed{\text{X-Intercept: (-9,0)}}[/tex]
----------------------------
[tex]\text{Y-Intercept: Substitute the 'x' variable for zero and solve for 'y'.}\\\\2x+3y=-18\\\-------\\\rightarrow2(0)+3y=-18\\\\\rightarrow3y=-18\\\\\rightarrow\frac{3y=-18}{3} \\\\\rightarrow\boxed{y=-6}\\\-----\\\\\boxed{\text{Y-Intercept: (0,-6)}}[/tex]
»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
Tell whether the angles are adjacent or vertical. Then find the value
of x. i will mark brainliest!
Answers
3x-4= 107
-4. -4
3x= 103
/3. /3
X= 34.333333
Please help with these high school geometry circle questions.
Answers
Answer:
I don't know I'm really sorry please don't be angry
and if you want my social media cause your angry I'll give
The box-and-whisker plot below represents some data set. What percenta data values are less than 66?
Answers
Given:
The a box-and-whisker plot if a data set.
To find:
The percentage of data values that are less than 66.
Solution:
From the given box-and-whisker plot, it is clear that the number 66 is the highest value of the data set.
It means all the values of the data set are less than 66 and no value can be more than 66.
All value means 100%.
Therefore, 100% of data values are less than 66.
Help with this problem pls
Answers
As x increasing y decreases.
As x decreases, y increases.
Please mark as the brainliest.
Hope it helps you.
Thank You
How many times larger is 3 x 10^8 than 3 x 10^2
A: 1 x 10^-6
B: 1 x 10^4
C: 1 x 10^6
D: 1 x 10^10
Answers
Answer:
Your answer is C
Step-by-step explanation:
You should look at the exponent. Once you figure out the difference between the two exponents then you get your answer.
Can someone help solve this?
Answers
Answer:
C
Step-by-step explanation:
Paul is a baker who earns 15 cash per hour.If paul worked 63 housrs at her job how much money has she eared
Answers
Which line on the graph represents the equation y + 4 = -2x/3
Answers
Answer:
The answer is line D
Step-by-step explanation:
Which statement best describes the sequence defined by ?
The series diverges because it has a sum of 6.
The series converges because it has a sum of 3/4.
The series converges because it has a sum of 2.
The series diverges because it does not have a sum.
Answers
Answer:
well its not c so...
Step-by-step explanation:
that'll leave you w 3 others to choose from. sorry.
The series diverges because it does not have a sum option, fourth is correct.
What is the convergent of a series?A series is convergent if the series of its partial sums approaches a limit; that really is, when the values are added one after the other in the order defined by the numbers, the partial sums get closer and closer to a certain number.
We have an infinite series:
[tex]\rm \sum ^{\infty}_{n=1}\dfrac{3}{4}(2)^n[/tex]
[tex]\rm \sum ^{\infty}_{n=1}3(2)^{n-2}[/tex]
The above series is geometric series with first term 2 and the common ratio is 2.
Here 2>1
By the ratio test, the series is divergent.
Since the common ratio is greater than 1 the sum will be infinite.
Thus, the series diverges because it does not have a sum option, fourth is correct.
Learn more about the convergent of a series here:
brainly.com/question/15415793
#SPJ2
List the kinds of measurements have you worked with so far. Describe what area is. Describe what volume is.
How could you find the combined area of all faces of a three-dimensional shape? Give an example of why that would be a good measurement to know.
Answers
2. area is how much space is within a 2D shape.
3. Volume is the amount of mass that a 3D shape takes up.
4. You find the combined area of a 3D shape by finding the individual area of each shapes on the outside of the 3D shape and then add them up.
5. i’m not sure what you mean by “give an example of why that would be a good measurement to know”
Answer:
In the passed I've used measurement cups, rulers, addition, subtration, and multiplication too.
Step-by-step explanation:
Stay Safe <3 =3 Can I maybe Get Brainliest?
Someone please help will mark brainliest!!!
Answers
Answer: 50°
Step-by-step explanation: ur smart, u don’t need one, but if u really want one just comment on it and I’ll give u one :)
ASAP PLEASE
question is in the picture
Answers
Answer:
5040
Step-by-step explanation:
-1 × -2 × -3 × -4 × -5 × -6 × -7 × -8 = 40320
40320 ÷ 8 = 5040
(not 100% sure this is right)
hello please help i’ll give brainliest
Answers
Answer:
The first answer is correct.
Step-by-step explanation:
If we were to plot the numbers of the first one, we would see that they match up to the plot that is given.
Hope that this helps!
2. Order these numbers from least to greatest: 5,0,1,-15-3,-1
Answers
Answer:
Step-by-step explanation:
- 15, -3, -1, 0 , 1, 5
Answer:
-15,-3,-1,0,1,5
Step-by-step explanation:
A stack of 500 pieces of paper is 2 inches tall. How tall is a stack of 250 pieces? 100 pieces? 10 pieces?
Answers
100 is 0.4 inch
10 is 0.04 inch
What association does the scatter plot show
A positive nonlinear association
B positive linear association
C no
D negative nonlinear
E negative linear
Answers
This is because there is no definitive line in the graph or upwards or downwards trend
Answer:
The answer would be no association
Step-by-step explanation:
I NEED HELP I WILL GIVE BRAINLIEST!
A. 11
B. 13
C. 21
D. 4
Answers
Answer:
c
Step-by-step explanation:
7. A rectangular prism has dimensions
4 feet x 3 feet X 10 feet. What
are the possible dimensions of a
horizontal or vertical cross section?
Answers
Answer:
yoi
Step-by-step explanation:
yoi
What is the solution of log(2f+4)=log(14-3f)
A)-18
B)-2
C)2
D)10
Answers
Answer:
f = 2
Step-by-step explanation:
equate the log
therefore,
2f + 4 = 14 - 3f
collect like terms
2f + 3f = 14 - 4
5f = 10
divide through by 5
f = 10/5
f = 2