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Anna [14]
3 years ago
12

Help me with this question

Mathematics
1 answer:
yanalaym [24]3 years ago
7 0
I am assuming that you will need to find the circumference of the circle.

Here is the original formula for finding the circumference using diameter:

C= πd

Because we should use 3.14 for pi and we are given the diameter our problem will now look like this:

C=3.14(15)

By multiplying these two together, our answer will be:

B. 47.1

Hope this helps!
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Why is it preferable to measure a penny in millimeters rather than centimeters or meters?
andrey2020 [161]
Pennies are small so, if would be more accurate and have whole numbers. If u measured with an inch or meter, u would get a fraction for an answer.
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3 years ago
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What is the greatest common factor of 40 and 36
Kazeer [188]

Nobody goes around with lists of greatest common factors in their head. 
When we need to know one, we grab the nearest pencil and work it out.

The factors of  40  are  1,  2,  4,  5,  8,  10,  20, and  40 .

The factors of  36  are  1,  2,  3,  4,  6,  9,  12,  18, and  36 .

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3 years ago
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An article in American Demographics claims that more than twice as many shoppers are out shopping on the weekends that during th
Monica [59]

Answer:

0.3085,0.2417,0.0045

Step-by-step explanation:

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X is N(85, 20)

To convert into std normal variate we use the following formula

Z=\frac{x-85}{20}

a) the probability that he has spent more than $95 at the mall

=P(X>95) = P(Z>0.5)=\\0.5-0.1915\\=0.3085

b.  the probability that he has spent between $95 and $115 at the mall

=P(95

c. If two shoppers are randomly selected, what is the probability that both shoppers have spent more than $115 at the mall

=product of two probabilities since independent

= {P(X>115)}^2\\= P(Z>1.5)*P(Z>1,5)\\= 0.0668^2\\=0.0045

7 0
3 years ago
What is the deciml equivalent to 1/2.
BabaBlast [244]
1/2 = 0.5

Proof:

1/4 + 1/4 = 2/4 = 1/2 = 0.25 + 0.25 = 0.50
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What is the solution of 2/3x = 12
Ivahew [28]

Answer:

x=18

Step-by-step explanation:

Isolate the variable

2/3 x=12

divide by 2/3

x=18

3 0
3 years ago
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