Question

Question 85 points

Solve the formula for the indicated variable.

R = nE - nr, for n

n = R - E + r

n = R + nr - E

n = E-T

n = $download?verifier=3pEmZbgY83VVL1tXv4UfUY$

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Question 95 points

Solve the problem.

Sophia borrowed $12,109 at 4.5% simple interest for 6 months. How much will the interest amount to? What is the total amount that she will have to pay back at the end of 6 months? Round answers to the nearest cent if necessary.

$227.04; $12,336.04

$272.45; $12,381.45

$274.74; $12,383.74

$317.86; $12,426.86

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Question 105 points

Solve the problem.

Find the length of a rectangular lot with a perimeter of 72 m if the length is 6 m more than the width.

21 m

42 m

36 m

15 m

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Question 115 points

Solve the problem.

A square plywood platform has a perimeter which is 7 times the length of a side, decreased by 18. Find the length of a side.

1

9

6

3

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Question 125 points

Solve the problem.

In a chemistry class, 6 liters of a 4% silver iodide solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10% solution are needed?

3 L

4 L

2 L

6 L

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Question 135 points

Multiply or divide, as indicated. Simplify the answer.

5

5i

-5

-5i

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Question 145 points

Write the number in standard form a + bi.

3 + 2i $download?verifier=gBn0zi3UMzgdyM7jXME4I7$

3 + 2i $download?verifier=y1bOVyiPyy7BkBayv0PplL$

3 - 4i $download?verifier=d8B40DLcI9Xg3y064NgQOG$

3 - 4i $download?verifier=mbs6KzpJtbYtTiSkWrY0PB$

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Question 155 points

Find the sum or difference. Write the answer in standard form.

(-5 - 9i) - (-4 + 8i) - (8 + 5i)

-9 - 22i

-1 + 4i

7 - 12i

-9 + 4i

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Question 165 points

Find the sum or difference. Write the answer in standard form.

i + 7 - (9 + 7i) - (7 - i)

9 - 9i $download?verifier=hDdT6wone4RWnZsSFsWdoN$

-9 - 5i $download?verifier=J0zyOVeFGXhsiYx3nmvnV5$

-9 + 5i $download?verifier=ZDOwlY7dE3PBzkIVVE9N32$

-9 - 9i $download?verifier=vgHZRmaUrqSMiK7vfBg3Au$

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Question 175 points

Find the quotient. Write the answer in standard form.

$download?verifier=XiRdje3cVRvRFNlBEoDAq5$ + $download?verifier=evmcLWHPuxvZ1DMdJXb03c$ i

$download?verifier=gMoR7bKkHsS7Qubr7m5XYX$ + $download?verifier=Xw518DV8IILQa0dB8Q9pHJ$ i

$download?verifier=6K1eIcYguB8Do3fseVNvn4$ + $download?verifier=Ni8HQUSXHVuZtfWbMGutSH$ i

$download?verifier=hvqo003kTe4MNPiAD5Lqz8$ - $download?verifier=ynGJjFdR3ZXF6N85omEu91$ i

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Question 185 points

Find the product. Write the answer in standard form.

(9 - 8i)(7 - 7i)

7+ 119i

56i2 - 119i + 63

7- 119i

119+ 7i

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Question 195 points

Simplify the power of i.

i57

1

-i

i

-1

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Question 205 points

Evaluate.

-9x + 8x2 if x = 6 - 7i

185 - 91i

-158 + 63i

-886 - 5313i

-158 - 609i

Answer 1

LE-) , Soliny we get 83R 1 3S 1S -S - Tsysx3 -(K5厅