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emmainna [20.7K]
3 years ago
15

What is the perimeter of a regular heptagon with a side length of 9 inches?

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
6 0
What kind of Question is that. That is some real math right there.
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Please help!! Andy is 2 year older than jeff. in 5 years the sum of their ages will be 40 years . find their ages now .... provi
ANTONII [103]
Andy's age            = x
Jeff's age              = x-2
Andy's age in five years            = x+5
Jeff's age in five years              = x-2+5
The sum of their ages in five years        = x+5 + x-2+5

                                       x + 5 + x - 2 + 5 = 40
                                         2x + 8 = 40
                                         <u>    -8        -8</u>
                                              2x = 32
                                             <u> :2      :2</u>
                                               x = 16
x - 2 = 14

<u>Andy is 16 years old and Jeff is 14 years old</u>
8 0
3 years ago
I need help with 14, 15, and 16 please!!
stellarik [79]

Answer:

so 80 plus 20 is a 100

Step-by-step explanation:

thats it

7 0
3 years ago
Hurry Please
sleet_krkn [62]
It would be true no explanation needed
4 0
3 years ago
Read 2 more answers
Pls help me solve this problem!!
ddd [48]

Answer:

49.85

Step-by-step explanation:

41 is the mean, so half of the daily requests are above that number, half below, the question is about numbers above the mean, so the lower numbers won't be included in the percentage.

The difference between 59 and 41 is 18. The standard deviation given is 6.

18 ÷ 6 = 3  So that is 3 standard deviations. The empirical rule states that 99.7 of all values are within 3 standard deviations from the mean. But we are looking at only the upper half of those values so 99.7 ÷ 2 = 49.85 %

If the answer asks for approximate, you could round to 49.9 or 50.

And tell the math people to learn the correct spelling of fluorescent!

4 0
3 years ago
PLS HELP FROM 4 THROUGH 9 I BEG U PLEASEEEE
jasenka [17]

Answer:

4. 33 = 33

5. 19 > 10

6. 1 = 1

7. 0.95 > 0.9

8. 39 > 38

9. 14 > 2

10. x = 4

11. m = 44

12. p = 3

13. z=\frac{15}{23}

8 0
3 years ago
Read 2 more answers
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