3 years ago

Please help! Thank you!!

1 answer:

fomenos3 years ago

8 0

To find out the surface area of a triangular pyramid you have to do 14 x 24 then divide by 2 which gives you 168 then you'll do 8 times 6.9 then divide by 2 which will give you 27.6 which when you add 168+27.6, you'll get 195.

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How to simplify integers

lina2011 [118]

I don't think that you can. Integers are either positive or negative real numbers without decimals, so there isn't anything to simplify.

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3 years ago

Based on these results, if 250 children are asked about their favorite activity, how many children will prefer organize sports?

ser-zykov [4K]

Answer:

60 out of 250 children will prefer organized sports.

Step-by-step explanation:

We are given the results of a random survey of children between the ages of 13 and 18 about their favorite activity.

Based on these results, we are to find the number of children who will prefer organized sports if 250 children were asked about their favorite activity.

Children who will prefer organized sports = $\frac{37}{155} \times 250$ = 60

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3 years ago

Maria charges $15 for every 2 hours that she babysits. How much would Maria charge for working for 5 hours

saw5 [17]

15x2.5hours =37.5 dollars

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3 years ago

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Find the sum of the following polynomials (3x^3+ 8x^2– 3) + (7x^3- 4x + 4)

Ede4ka [16]

Answer:

10x^3+8x^2-4x+1 is answer

4 0

2 years ago

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Find the difference. (2n - 9) - 5(-2.4n + 4) =

MArishka [77]

Answer:

14n - 29

Step-by-step explanation:

First you'd distribute in the parentheses by -5. -5 × -2.4n and -5 × 4 which you would get 12 and -20.

Then, bring everything down and combine like terms. 2n + 12n = 14n || -9 - 20 or -9 - (-20) = -29. 14n - 29 is the lowest you can simplify because you can subtract a variable and a constant together.

5 0

3 years ago