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3 years ago

14

Please i need help on this i’m stuck

1 answer:

gtnhenbr [62]3 years ago

4 0

Perimeter would be 6pi+21.4

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8i-(12-4i)+7√-9<br><br> show work please

Tanya [424]

Answer:

33i - 12

Step-by-step explanation:

$8i - (12 - 4i) + 7 \sqrt{ - 9} \\ = 8i - 12 + 4i + 7 \sqrt{9 \times ( - 1)} \\ = 12i - 12 + 7 \times 3 \sqrt{ - 1} \\ = 12i - 12 + 21i \: \: ( \because \sqrt{ - 1} = i)\\ = 12i + 21i - 12 \\ \therefore \red{ \bold{8i - (12 - 4i) + 7 \sqrt{ - 9} }= \purple{ \bold{33i - 12}}}$

5 0

3 years ago

Solve for c:<br><br><br><br> c + (-20) = -12

alexira [117]

Answer:

8

Step-by-step explanation:

Isolate and solve for C

$c + (-20) = -12\\c - 20 = -12\\c = -12+20\\c = 8$

6 0

3 years ago

Read 2 more answers

A friend asks to borrow $250 for 18 months and agrees to pay 12% annual simple interest. How much interest will you earn? Round

german

Answer: $29.70

Step-by-step explanation:

250 times the annual interest (12%) is converted to 250 times .12 = 29.70

7 0

3 years ago

I am in algebra 1, please help i am so lost :(

SSSSS [86.1K]

Doug is 5 years old.
5 + 3 = 8
5 × 8 = 40

3 0

3 years ago

In circle T, PTQ = RTS.<br> What is the measure of PQ?<br> 24°<br> 33°<br> 48°<br> 66°

weqwewe [10]

Answer:

The correct option is D

66°

Step-by-step explanation:

Given that ∠PTQ ≅ ∠RTS

The measure of the arc SR = 66°

So ∠RTS = 66°

But also, ∠PTQ ≅ ∠RTS

Therefore ∠PTQ = 66°

and the measure of the arc PQ = ∠PTQ

Therefore, measure of the arc PQ is 66°.

4 0

3 years ago