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3 years ago

18. A recent article claimed that women are waiting longer to have their first

Mathematics

1 answer:

Leona [35]3 years ago

6 0

Answer:E

Step-by-step explanation:

The margin of error of 1.5 years indicates that we are confident the population mean age is captured i. The interval 26-1.5=24.5 to 26+1.5=27.5 years old. Therefore, it is plausible that the average age of first time mothers is 27 years old.

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If h= 11 units and r=4 units then what is the approximate volume of the cone

muminat

Answer:

V≈184.31

Step-by-step explanation:

V=πr2h

3=π·42·11

3≈184.30677

8 0

2 years ago

Read 2 more answers

school teacher and needs 22 pieces of wood, 3 over 8 ft long, for a class project. If he has a 9-ft board from which to cut the

tiny-mole [99]

Answer:

Yes, he will have enough 3 over 8 ft pieces for his class.

Step-by-step explanation:

Given:

Number of wood required = 22

Length of each wood, $l=\frac{3}{8}\textrm{ ft}$

Total length of the board, $L=9\textrm{ ft}$

Therefore, the number of woods that can be made using the given board is given as:

$\textrm{Number of woods made}=\frac{\textrm{Total length of board}}{\textrm{Length of each wood}}\\\textrm{Number of woods made}=\frac{L}{l}=\frac{9}{\frac{3}{8}}=9\times \frac{8}{3}=\frac{72}{3}=24$

So, he can make 24 woods of length $\frac{3}{8}\textrm{ ft}$ using the 9 ft board. But he has to make only 22 pieces.

Therefore, he has enough of the wood to make the required number of pieces.

3 0

2 years ago

What is 2 times 2 plus 2 divided by 2

egoroff_w [7]

The question says:
2×2+2÷2
so first you should find 2 × 2 which is 4 and then 2 ÷ 2 which is 1
now you have:
4 +1 = 5 so the answer is 5 :)))
i hope this is helpful
have a nice day

3 0

3 years ago

Read 2 more answers

Write a quadratic equations given the roots 5/2 and 9

sukhopar [10]

Answer:

(x-5/2)(x-9).

x^2-5/2x-5/2x+45/2.

Multiply the number by 2.

which is 2(x^2-5/2x-5/2x+45/2).

2x^2-5x-5x+45.

2x^2-10x+45.

7 0

3 years ago

Solve for x and y<br> 6(ax + by) = 3a + 2b ; 6(bx-ay) = 3b - 2a

slava [35]

6×ax+6×by =6ax+6by =3a+2b,6×bx-6×ay=3b-2a=6bx-3a+2b

4 0

2 years ago