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12345 [234]
3 years ago
7

Please hurry simplify the problem a i b 5i c -i

Mathematics
1 answer:
KIM [24]3 years ago
5 0

Answer:

\frac{90}{5} i

Step-by-step explanation:

10 * sqrt(81/25 * -1) = 10 sqrt(81/25) * sqrt(-1) = 10 *9/5 * i

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3 x 10^4 in standard form
Art [367]

Answer: 3x10=30

3x10(with the power of 2)=300

3x10(with the power of 3)=3000

3x10(witht the power of 4)=3000

Step-by-step explanation:

sorry if this dont help

6 0
2 years ago
If the Mara family drives to Alexandria at a speed of 57 miles per hour, how many miles do they drive in 90 minutes? (Recall: 1
Anettt [7]
The answer is A. 1.5 Hours * 57 = 85.5
3 0
3 years ago
Read 2 more answers
–3x – 3 < –63 This is rlly needed.
NISA [10]
-3x -3 < -63 subtract the 3 first
-3x < -60 then divide the -3 from both sides
x < 20 is your answer
6 0
3 years ago
The football coach is overseeing the installation of new goal posts on the football field. He is wondering if the goal posts are
Westkost [7]

Answer:

Correct option is D. No, since the ratios of the corresponding sides are not proportional.

Step-by-step explanation:

Please refer to the attached figure

Let height of coach represents by AB = 6 feet

And shadow of coach represents by BC = 4 feet

Let height of goal post represents by DE = x feet

And Shadow of goal post represents by EF = 12 feet.

Since measurement of shadows are at same time. therefore  ratio of height of coach and height of goal post  must be same as ratio of shadow of coach and shadow of goal post.

⇒ 6/x = 4/12

⇒x = 72/4 = 18 feet

So goal post is not at regular height , since expected height is 20 feet while actual height is 18 feet . And if we consider value of x as 20 feet instead of 18 feet , ratio of corresponding sides will not match.

Hence correct answer is D. No, since the ratios of the corresponding sides are not proportional.

8 0
3 years ago
What is 3123532488697 x 5676576876896786
horrorfan [7]
The answer to ur question is 1.77309723E28.
Hope this helps and can i get brainliest answer.
4 0
3 years ago
Read 2 more answers
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