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dybincka [34]
3 years ago
14

PLEASE HELP ASAP 25 PTS + BRAINLIEST TO RIGHT/BEST ANSWER

Mathematics
2 answers:
CaHeK987 [17]3 years ago
6 0

Answer:

Choose c if only one answer

If you can choose 2, then choose a and c

Step-by-step explanation:

sqrt (-80)

±sqrt(-1) * sqrt(80)

sqrt(-1) = i

±i sqrt(80)

±i sqrt(16) *sqrt(5)

± 4i sqrt(5)

The principal square root is 4i sqrt(5), but -4i sqrt(5) is also true

Pepsi [2]3 years ago
3 0

Answer:

It is C

Step-by-step explanation:

√(-80)

±√a-1) * √(80)

√(-1) = i

±i √(80)

±i √(16) * √(5)

± 4i √(5)

The principal square root is 4i √(5), but -4i √(5) is also true

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Barba can walk 3200 meters in 24 minutes.How far can she walk on 3 mins
SashulF [63]

Answer:

400 meters in 3 minutes

Step-by-step explanation:

First find  how far she can walk in 1 minute.

3200/24 = 133 1/3.

She can walk 133 1/3 meters in 1 minute. If we want to find out how far she can walk in 3 minutes. Multiply that number by 3.

133 1/3 * 3 = 400.

Hope that helps.

8 0
2 years ago
A surgery asks 25 people if they prefer brand A of brand B laundry detergent. The data show that 12 people prefer brand A. Write
SVETLANKA909090 [29]

Answer:

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13:25

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Step-by-step explanation:

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Hope this helps!

8 0
2 years ago
What is the definition of congruent
Alinara [238K]

Answer:

more ... The same shape and size, but we are allowed to flip, slide or turn. In this example the shapes are congruent (you only need to flip one over and move it a little). Angles are congruent when they are the same size (in degrees or radians). Sides are congruent when they are the same length.

Step-by-step explanation:

happy to help ya:)

3 0
3 years ago
Read 2 more answers
What is 24.45379+5679.0000000
Scilla [17]
It equals <span>5703.45379.

Happy studying ^_^</span>
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