2 years ago

Question 4

Mathematics

1 answer:

svlad2 [7]2 years ago

8 0

Answer:

1) 28

2) 28

B) 1 and 1/2 hr

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Whats 9 + 10 fr fr ong fr on fr fr

Fed [463]

Answer:

19.

21 sometimes though.

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2 years ago

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Use the compound interest formula A =P(1 + r) t and the given information to solve for r.

Dmitry [639]

Answer:

Rounding to nearest hundredths gives us r=0.06.

So r is about 6%.

Step-by-step explanation:

So we are given:

$A=P(1+r)^t$

where

$A=2300$

$P=1600$

$t=6$ .

$A=P(1+r)^t$

$2300=1600(1+r)^6$

Divide both sides by 1600:

$\frac{2300}{1600}=(1+r)^6$

Simplify:

$\frac{23}{16}=(1+r)^6$

Take the 6th root of both sides:

$\sqrt[6]{\frac{23}{16}}=1+r$

Subtract 1 on both sides:

$\sqrt[6]{\frac{23}{16}}-1=r$

So the exact solution is $r=\sqrt[6]{\frac{23}{16}}-1$

Most likely we are asked to round to a certain place value.

I'm going to put my value for r into my calculator.

r=0.062350864

Rounding to nearest hundredths gives us r=0.06.

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3 years ago

Which of the following is x=-5 a solution ?

Katarina [22]

Answer:

C and D

Step-by-step explanation:

Plug X in and see which equations/expressions are true

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Evaluate c-2 when c =7

LenaWriter [7]

If C = 7, You would do 7-2 = 5

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What are the zeros of the function below? Check all that apply.

nordsb [41]

F, A.

-3, 1

use a graphing calc

or do

x+3 = 0 or x-1 = 0 to get x = -3 or x = 1

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2 years ago