3 years ago

Please help due tomorrow and I can’t do it now cause I have a orchestra concert

1 answer:

8 0

Use Slader.com, Find the math book and look up the page. It will show you the answer and how to get it.

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Norma-Jean [14]

x + 7(x + 1)

7x + 7

x + 7x + 7

8x + 7

x + 7(x + 1) = 8x + 7

8x + 7

3 0

3 years ago

devlian [24]

Answer:

The principal square root of -4 is 2i.

Step-by-step explanation:

$\sqrt{-4}$ = 2i

We have the following steps to get the answer:

Applying radical rule $\sqrt{-a} =\sqrt{-1} \sqrt{a}$

We get $\sqrt{-4} =\sqrt{-1} \sqrt{4}$

As per imaginary rule we know that $\sqrt{-1}=i$

= $\sqrt{4} i$

Now $\sqrt{4} =2$

Hence, the answer is 2i.

6 0

3 years ago

Westkost [7]

Muitply by two on both sides then subtract then divide to find x

6 0

3 years ago

vladimir2022 [97]

For question 2 it is 15

Because: 4 time 6 is 24 and then you minus 9 which is 15

So there you have it the answer is 15

8 0

3 years ago

Bezzdna [24]

Cylinder formula is 2pi(r)^2 + 2pi(r)h

2pi(0.25)^2 + 2pi(0.25)(1)

Chuck that in calculator and evaluate

8 0

3 years ago