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3 years ago

Which of the following best represents the average rate at which infants grow in height during the first four years after birth?

1 answer:

7 0

Which of the following best represents the average rate at which infants grow in height during the first four years after birth? B: 3inches per year

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Geometry question. please help

Vinvika [58]

Answer:

The length of PQ is 18 feet.

The length of PR is 18 feet.

The length of QR is 24 feet.

Step-by-step explanation:

A way to set an equation up for this problem is:

$\frac{4}{3}x+x+x=60$

where x is the three lengths of the isosceles triangle, but the base QR is 4/3 the length of the other two congruent sides, length PQ and PR. The 60 represents the total length of the perimeter.

Then, solve for x from the equation, and you’ll get x=18. But your not done yet. Since the variable x in the equation stands for the sides of the isosceles triangle, so plug 18 into the equation and it should look like this:

$\frac{4}{3}(18)+18+18=60$

Don’t solve the whole equation, just solve the $\frac{4}{3}(18)$ part of the equation, which is equal to 24. So the final equation is this:

$24+18+18=60$

Conclusion: 24 is the length of QR, and 18 is the length of PQ and PR. And they all equal 60, which is the perimeter. This is very true because the length of PQ and PR are the same (length 18), since it’s an isosceles triangle, and the length of QR is 4/3 the length of PQ and PR (4/3 of 18= 24).

Sorry for the long explanation.

But hope this helps and answers your question :)

8 0

3 years ago

Pleas someone help me with this it's my last question

ruslelena [56]

Answer:

we need to find out if the following get x = 2 as a final product

-2(x-4) = 4

-2x + 8 = 4

-2x = -4

x = 2

so it is a solution

26/x = 13

26 = 13x

x = 26/13

x = 2

so it’s a solution

-3.8x = -7.4

x = 7.4/3.8 ≠ 2

you get ≈ 1.95

so it’s not a solution

4(x-1) - 3(x-2) = -8

4x - 4 - 3x + 6 = -8

x + 2 = -8

x = -10

so it’s not a solution

5 0

3 years ago

Read 2 more answers

What is the answer of question 1

jeyben [28]

Answer: don't know sorry

Step-by-step explanation:

7 0

3 years ago

Mr. Wolboldt and Mrs. Wolboldt went to Bob Evans for lunch. Their bill for the food was $26.50. If they plan on leaving a 20% ti

Finger [1]

Answer: 31.80

Step-by-step explanation:

First you divide 26.50 by 0.20 to get 5.3 then you add that to the starting total and you get your answer which is

5 0

3 years ago

Cornelius is building a solar system model. He plans on making a circular ring around one of the planets out of wire. He wants t

astra-53 [7]

Answer:

$C = 2\pi r$

$C = \pi d$

Step-by-step explanation:

Given

A circular ring

Required

The length

Let

$r \to$ the radius of the ring

The length is calculated by calculating the circumference of the ring.

This is calculated using:

$C = 2\pi r$

$C = \pi d$

Where

$d \to$ diameter

and $d = 2r$

6 0

3 years ago