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Leni [432]
3 years ago
12

The radius of circle A is r cm. The radius of circle B is twice the radius of circle A. What difference between the circumferenc

e of circle B and circle A (in cm)?​
Mathematics
1 answer:
avanturin [10]3 years ago
3 0

9514 1404 393

Answer:

  2πr cm

Step-by-step explanation:

The circumference of a circle of radius r is ...

  C = 2πr

For a radius of (r cm), the circumference is ...

  A = 2π(r cm) = 2πr cm

For a radius of (2r cm), the circumference is ...

  B = 2π(2r cm) = 4πr cm

Then the difference between the circumferences is ...

  B -A = (4πr cm) -(2πr cm) = 2πr cm . . . . difference in circumference

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Find the y-intercept of the function.<br> y = 6^x
dsp73
Y-intercept of f(x) is a value of function for x = 0.

y = 6^x ⇒ f(x) = 6^x

f(0) = 6^0 = 1

Answer: (0; 1)
6 0
3 years ago
Suppose that Clayton Kershaw of the Los Angeles Dodgers throws his fastball with a mean velocity of 94 miles per hour (mph) and
vekshin1

Answer:

Step-by-step explanation:

ah,  probability,  so the std. deviation is 2 MPH,  so that means to get from the mean.. or average speed of 94, he'll have to vary by 3 std. deviations  or  6 MPH to hit 100

99.7%  of throws fall into that area of with in 3 std. deviations so that means

0.3% fall outside also , 1/2 of those will 3 std. deviations slow while the other half is fast

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8 0
3 years ago
Answer ? For this question
Mademuasel [1]

Orange box:

The incorrect statement is B. The theoretical probability is the probability of an event occurring that is expected. In this case, the theoretical probability of selecting a dime is 4/25.

Purple box:

The incorrect statement is C. The difference between the theoretical and experimental probability is not 1/10. The difference between the experimental and theoretical probability is 0.015 or 3/200.

6/25 = 0.24

9/40 = 0.225

0.24 - 0.225 = 0.015

Hope this helps!! :)

6 0
3 years ago
What's the common denominator of this equation?<br> 3 - b = 6-7
GuDViN [60]

Answer:

b = 4

Step-by-step explanation:

3 - b = 6 - 7

3 - b = -1

-b = -1 -3

-b = -4

b = 4

8 0
3 years ago
Read 2 more answers
Find the median of this set of data 34 36 30 37 40 30 42 a 37 b 35 c 36 d 30
shusha [124]

Answer:

<h2>36</h2>

Step-by-step explanation:

The median is the value that separates the higher half from the bottom half of the data sample (middle value).

We have

34, 36, 30, 37, 40, 30, 42

Write from the smallest to the largest number

30, 30, 34, 36, 37, 40, 42

3 0
3 years ago
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