3 years ago

Please select the best answer from the choices provided A B C D

Mathematics

1 answer:

larisa86 [58]3 years ago

6 0

Answer:

Step-by-step explanation:

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PLZ help me fast 2 mins left

jek_recluse [69]

Answer:

$\sqrt{-5}=i\sqrt{5}$

$\sqrt{-25}=5i$

Step-by-step explanation:

i is an imaginary unit, this means

$i^2=-1$

Rewrite -5 as $5\cdot (-1)=5\cdot i^2,$

then

$\sqrt{-5}=\sqrt{5i^2}=\sqrt{5}\cdot \sqrt{i^2}=\sqrt{5}\cdot i=i\sqrt{5}$

Rewrite -25 as $-25=25\cdot (-1)=25\cdot i^2,$

then

$\sqrt{-25}=\sqrt{25\cdot i^2}=\sqrt{25}\cdot \sqrt{i^2}=5\cdot i=5i$

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3 years ago

In a woodworking class, you need to make five triangles out of plywood. Each triangle has a height of 6 inches and a base of 14

Bogdan [553]

Answer:5 * (1/2 * 6 * 14)= x

Step-by-step explanation: :D

3 0

3 years ago

What is differnce when there is parentheses around a number being squared?

Svetach [21]

When parentheses are around a number being squared, the output value will always be positive.

For example: -2² vs (-2)²
-2² means the negative of the square of two, or -4
(-2)² means the square of negative two, or 4

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3 years ago

What is the answer to this? Will give brainiest 5[(6-3)^(2)+4*2]=

mylen [45]

85 is the correct answer.

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3 years ago

Help will give brainlyest if answered correctly

mash [69]

Answer:

Step-by-step explanatio answer c

7 0

3 years ago