3 years ago

PLEASE HELP!!!!!!!!!

Mathematics

1 answer:

fenix001 [56]3 years ago

8 0

Answer:the correct answer is D

Step-by-step explanation:

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A hippopotamus's typical growth rate is typically 50.5% per year when considering it's weight in pounds from birth to maturity.

VARVARA [1.3K]

Answer:

9.3 years

Step-by-step explanation:

we know that

The equation of a exponential growth is equal to

$y=a(1+r)^x$

where

y is the weight in pounds

x is the number of years

a is the initial value or y-intercept

we have

$a=70\ lb\\r=50.5\%=50.5\100=0.505$

substitute

$y=70(1+0.505)^x$

$y=70(1.505)^x$

For y=3,100 lb

substitute in the equation

$3,100=70(1.505)^x$

solve for x

$\frac{310}{7} =(1.505)^x$

apply log both sides

$log(\frac{310}{7}) =log[(1.505)^x]$

$log(\frac{310}{7}) =(x)log(1.505)$

$x=log(\frac{310}{7})/log(1.505)=9.3\ years$

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3 years ago

The triangles are similar. If QR = 4, QP = 2, and TU = 13, find TS. Round to the nearest tenth.

hichkok12 [17]

It seems to have a picture to point out the QR, QP and TU, TS means. But if you got ΔABC∽ΔA'B'C', then you can get equation: AB/A'B'=AC/A'C'=BC/B'C'. The same angle will corresponding the same ratio of the length.

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Distribute: -8(3f - 9)

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Step-by-step explanation:

$- 8(3f - 9) =$

$- 24f + 72$

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