The formula for the area of a circle is A = π r^2? Which equation shows the formula in terms of r?
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Related Questions
itis true or false plz be fast
Answers
What is the answer mane
Answers
Answer:
im tryna figure it out to dawg
Step-by-step explanation:
Line a passes through points
(-2,1) and (2,9). Which equation
is an equation of a line parallel
to line a?
a) y = -2x + 5
1
b) y=-=x+5
2
1
y = -x-5
c) y=*
d) y = 2x - 5
Answers
Answer:
The answer is A! I got it right on pluto
Suppose you randomly select a sample of 16 observations from a population with =11 and =2 You find ⎯⎯⎯=9. The sampling error is _____ -2 2 -1 1
Answers
Answer:
- 2
Step-by-step explanation:
Given that :
Population mean, μ = 11
Population standard deviation, σ = 2
Sample mean, xbar = 9
Sample size, n = 16
The sampling error could be explained as the variation or difference which exists in statistical measure of the population and sample as the sample data does not totally or wholly represent the population data. This difference in sample and population mean is called sampling error.
Hence, the sampling error in the above scenario can be obtained thus :
Sampling error = (xbar - μ)
Sampling error = 9 - 11 = - 2
HI GUYS!! PLS HEL PME I NEED HELP, here is the question
There are 8 big fish for every___
small fish.
There are 4 big fish for every___
small fish.
The image is attached any way pls someone i beg u help me.
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Answer and Step-by-step explanation:
We have to use the image to help us answer this question.
We see that there are 8 big fish in the tank, and 10 small fish in the tank.
So, for the first part, it would be:
There are 8 big fish for every 10 small fish.
For when there are 4 big fish, we need to divide 10 by 2, since 8 divided by 2 is 4.
10 ÷ 2 = 5
So,
There are 4 big fish for every 5 small fish.
I hope this helps!!
#teamtrees #PAW (Plant And Water)
Please help will give brainliest
Answers
Answer:
D
Step-by-step explanation:
A circle fits in a square with sides of 12 inches. What is the approximate area of the shaded region between the square and the circle? (Use 3.14 for Pi and round to the nearest whole number.) A circle inside of a square with side lengths of 12 inches. The circle has a diameter of 12 inches. 31 inches squared 69 inches squared 106 inches squared 125 inches squared
Answers
Answer:
31 inches squared
Step-by-step explanation:
Area of shaded part = area of square - area of circle
area of square = length²
12² = 144
Area of a circle = πr²
r = radius = 12/2 = 6
(3.14) x 6² = 113.04
Area of shaded part = 144 - 113.04 = 30.96
rounding off to the nearest whole number gives 31
Answer:
31 squared inches
Step-by-step explanation:
cuz i did the test
MoNkEe :)
which angle is supplementary to.... asap plz
Answers
Answer:
Angle AGC
Step-by-step explanation:
Two angles are called complementary if their measures add to 90 degrees, and called supplementary if their measures add to 180 degrees. ... For example, a 50-degree angle and a 40-degree angle are complementary; a 60-degree angle and a 120-degree angle are supplementary
Which function is the same as the linear
function represented by the table?
x y
-4 -14
-2 -8
0 -2
2 4
4 10
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Answer:
y=3x-2
Step-by-step explanation:
We know the equation ends in -2 because when x is zero, y is -2
To find the rest of the equation take any other point and take away the -2 from y
Then divide the y by the x to see how may times larger (or smaller) the y is then the x
(I chose -14)
-12÷-4=3
y=3x
the put the -2 back at the end because otherwise, your -14 would be a -12 and that is not a point on the table
Can you help me............
Answers
Answer:
1,652,43
Step-by-step explanation:
1/5(30+a)>5
Solve the inequality
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A television newscaster from a 24-hour news station wants to estimate the number of hours per day its viewers watch
programming on this channel
. The neviscaster randomly selects 100 viewers and asks them how many hours per day
they watch this station. The newscaster constructs an 85% confidence interval for the true mean number of hours
viewers watch this station. Which of the following would decrease the margin of error?
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Answer:
This isn't the best worded question but from what I understand a larger sample size decreases the margin of error. If he would like a more accurate answer a larger sample size of the viewers will give more accurate answers.
Step-by-step explanation:
Please help me. NO LINKS AND DONT USE ME FOR POINTS.
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Answer:
111.2 Fahrenheit for the bottom one and 22.8 Celsius for the top one.
Step-by-step explanation:
Following the formulas for the numbers we can get this
Answer:
22.7 degree c
111.2 degree f
Step-by-step explanation:
Help ill give brainliest and 5 star and thx if u help with all of em and ill give 20 points
plz plz plzzz
Answers
Answer:
1. 3mg
2. 3050g
3. 0.025g
4. 5700mg
5. 0.294g
6. 32mg
7. 13700mg
8. 2.441kg
9. 8.24g
10. 0.075kg
11. 430g
12. 0.721g
Step-by-step explanation:
This should be right :)
Jacqueline had $.84 her brother gave her another $.61 write the amount of money Jacqueline now has as a decimal explain
Answers
Answer:
$1.45
Step-by-step explanation:
According to the scenario, computation of the given data are as follows,
Money already had = $.84
Brother gave = $.61
So, total money Jacqueline has = Money already had + Brother gave money
= $.84 + $.61
= $1.45
Explanation : Total money Jacqueline has will be the total of the sum of the money she already had and the money her brother gave him.
Which number line shows that point A is 4 units from 0?
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Cindi deposited $300 at 7.5% simple interest rate. How much interest will she earn after 5 years?
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Answer:
$431
Step-by-step explanation:
using the formula P(1+r/100)^n,
we can substitute the P with $300,
substitute the r with 7.5%,
and substitute the n with 5.
Use limits to find the area between the curve of y = x and the x-axis for the interval from
x= 1 to x= 3.
Links will be reported.
Answers
Answer:
The area between the curves is 4 square units.
Step-by-step explanation:
We want to find the area bounded by:
y = x
x = 0
in the interval x = 1, x = 3
This is simply equal to the integral of the function f(x) = x between x = 1 and x = 3
Written as:
[tex]\int\limits^3_1 {x} \, dx[/tex]
And the integral of x is equal to x^2/2
Then:
[tex]\int\limits^3_1 {x} \, dx = (\frac{3^2}{2} - \frac{1^2}{2}) = (\frac{9}{2} - \frac{1}{2} ) = \frac{8}{2} = 4[/tex]
The area between the curves is 4 square units.
HELP DOES EQUATION A OR B HAVE A POSITIVE SLOPE!!??
Answers
Answer:
A
Step-by-step explanation:
The slope in a slope-intercept equation is the coefficient of x.
In A, the slope is a 4/3, which is positive
In B, the slope is a -5, which is negative
A bag with 8 marbles has 8 yellow marbles. A marble is chosen from the bag at random. What is the probability that it is yellow?
Write your answer as a fraction in simplest form.
Answers
Answer: 1
Step-by-step explanation:
8 yellow / 8 total = 8/8 = 1
The length of a rectangle is 7 cm longer than its width.
The area of the rectangle is 120 cm².
What is the width of the rectangle?
Enter your answer in the box.
Answers
Answer:
length = 15 width = 8
Area 15x8 = 120
Step-by-step explanation:
L = length
W= width
L = W + 7 (width plus7)
Area = W x L
Area =W (W+7)
Do the distribution:
120 = W ² + 7W
Subtract 120 on both sides
W + 7W -120 = 0
Factor it
(W + 15)(W - 8) = 0
W = -15 or W = 8
8 is used for W
L = W + 7
L = 8+7=15
Length = 15
Width =8.
Use the original price and the markup to find the retail price.
Original price: $70; Markup: 15%
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P = R - C
To calculate revenue R based on the cost C and the desired gross margin G, where G is in decimal form:
R = C / ( 1 - G)
The gross profit dollars P is the revenue dollars R from the sale times the gross margin G percentage, where G is in decimal form :
P = R * G
The markup percentage M, in decimal form, is gross profit P divided by cost C.
M = P/ C
M * 100 will change the decimal to a percentage.
Answer:
$80.50
Step-by-step explanation:
To find the retail price:
Find 15% of $70. 0.15 × $70 = $10.50Add the markup price to the original price. $70 + $10.50 = $80.50Final answer - $80.50The expression 3(x-9) is equivalent to
03(x)+9.
3(x)+3(9)
03(x) -9.
03(x) – 3(9)
Answers
Answer:
The expression equivalent to 3( x - 9) Is
3(x) - 3(9)
3x-27
The answer is D
3(x)-3(9)= 3x-27
The model below is shaded to represent an expression. Which expression represnts the model?
Answers
Answer:
stop rushing me aaaaaaaaaahhhhhhhh
Step-by-step explanation:
Hunter took out a $3,500 loan with interest to pay for some business supplies. He will repay the loan in 3 years with monthly payments of $109.68. Find the total amount of Hunter’s repayment.
A. $329.04
B. $3,948.48
C. $1,316.16
D. $10,500
Answers
Answer:
A
Step-by-step explanation:
A. $329.04
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A triangle has two angles that measure 65 degrees and 35 degrees. What is the measurement of the third angle?
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Answer:
THE MEASUREMENT ON THE THIRD ANGLE IS 180!!
Step-by-step explanation:
find the value of x
(7x + 23)
(21x - 11)
Answers
Answer:
=30x
=10x
Step-by-step explanation:
7x + 23 = 30x
21x - 11 = 10x
Convert y-1 = 2/5(x+10) into general form. Please explain steps
Answers
https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:forms-of-linear-equations/x2f8bb11595b61c86:standard-form/v/converting-from-slope-intercept-to-standard-form
This can help!
Answer:
y=2/5x+5
Step-by-step explanation:
Distribute 2/5 to the x and 10
At this point, y-1=2/5x+4
Add the 1
y=2/5x+5
pls help!!?!?!?!?!?!!?!?!?
Answers
Answer:
The first step is to subtract 4 to both sides. Next we must multiply both sides by 2. The answer is - 20
Use the grouping method to factor the polynomial below completely.
x3 - 3x2 + 5x - 15
Answers
(x-3)x^2+5)
It's too short. Write at least 20 characters to explain it well.
:0
Answer:
(x2 + 5)(x – 3)
Step-by-step explanation:
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