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Marianna [84]
3 years ago
9

Simplify the expression to a + bi form: (12-6i)-(7+8i) (12−6i)−(7+8i)

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
8 0

Answer:

5-14i

Step-by-step explanation:

(12-6i)-(7+8i)\\\\12-6i-7-8i\\\\5-14i

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If p and q are non-zero rational numbers, and s and t are irrational numbers, select all of the statements that are always false
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Answer:

The false choices are A, C, and E

Step-by-step explanation:

Let's make an example:

p=1

q=2

s=sqrt(3)

t=sqrt(6)

Since pq=1*2=2, the answer is rational and A is false.

Since pt=1*sqrt(6)=sqrt(6), the answer is irrational and B is true.

Since p/q=1/2=0.5, the answer is rational and C is false.

Since st=sqrt(3)*sqrt(6)=sqrt(18), the answer is irrational and D is true.

Since s/t=sqrt(3)/sqrt(6)=sqrt(1/2), the answer is irrational and E is false.

4 0
3 years ago
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Answer:

1008

Step-by-step explanation:

If 4/5 of eighth graders, or 80%, are enrolled with class, there are still 20% of students that didn't study. That means you add 168, the 20%,  and you'll get 1008.

3 0
2 years ago
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Nataly [62]

Answer:

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I mutiplied 2 to the 5th power and it equals 32

7 0
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Step-by-step explanation:

Please see attached picture for full solution.

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