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GenaCL600 [577]
3 years ago
5

Helppppp meeee pleaseeee in horrible at math

Mathematics
1 answer:
rosijanka [135]3 years ago
4 0
Circumference = 2×3.14×r
3.14 is pie and r is the radius.
To find the radius you divide the diameter by 2.
19 ÷ 2 = 9.5
2×3.14×9.5 = 59.66
Multiply 59.66 by 6 because ther are 6 pennies.

59.66 × 6 = 357.96 mm.
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Is 40mi+98mi+104mi= a right triangle
alexira [117]

Answer:

no

Step-by-step explanation:

A right triangle consists of one angle being 90 degrees. Contrast to this picture, the triangle has no angle of 90 degrees.

5 0
3 years ago
19% of 288 i need help<br>​
Helga [31]

Answer:

54.72

Step-by-step explanation:

  • multiply 19% by 0.01
  • multiply 0.19 by 288

19·0.01=0.19

0.19·288=54.72

Therefore, 19% of 288 will be 54.72.

8 0
3 years ago
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It's not possible to build a triangle with side lengths of 3, 3, and 9.
Anton [14]

Answer:

false

Step-by-step explanation:

4 0
3 years ago
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Help me with my geometry homework, please
Ksju [112]

Add 8x17 +the biggest number

4 0
4 years ago
Over the last three evenings, Martina received a total of 99 phone calls at the call center. The third evening, she received 4 t
Ket [755]
A = number of calls the first evening

b =  = number of calls the second evening

c = number of calls the third evening

we know that she received a total of 99 calls, thus whatever "a", "b" and "c" are, we know that a + b + c = 99.

"<span>The third evening, she received 4 times as many calls as the first evening"

           c = 4a

"</span><span>The second evening, she received 9 more calls than the first evening."

          b = a + 9

</span>\bf \begin{cases}&#10;a+\underline{b}+\underline{c}=99\\&#10;c=4a\\&#10;b=a+9\\&#10;----------\\&#10;a+\underline{(a+9)}+\underline{(4a)}=99&#10;\end{cases}&#10;\\\\\\&#10;a+a+9+4a=99\implies 6a=99-9\implies 6a=90\implies a=\cfrac{90}{6}
<span>
and surely you know how much that is.  Well, she got that many the first night.

how many the second night? well b = a + 9
what about the third night?  well, c = 4a.</span>
3 0
4 years ago
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