3 years ago

Plzz help last question for today:

Mathematics

1 answer:

Nikitich [7]3 years ago

5 0

16 girls
40/5 = 8 so 2*8 = 16

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yanalaym [24]

Answer:

D.134

Step-by-step explanation:

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1 year ago

Geometry math question please help

Rom4ik [11]

Since BD joins the midpoints of two sides of a triangle, it is half the length of the third side, FE.

BD = (1/2)FE = (1/2)(23.5) = 11.75

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3 years ago

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Teague is participating in a 50K run to raise money for a charity. He has already raised $102 and will receive $1.40 for each ki

Volgvan

He has to run 45 kilometers

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3 years ago

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kogti [31]

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3 years ago

What is √-11 in the form a+bi?

Mice21 [21]

Given:

The number is $\sqrt{-11}$ .

To find:

The a+bi form of given number.

Solution:

We have,

$\sqrt{-11}$

It can be written as

$\sqrt{-11}=\sqrt{-1\times 11}$

$\sqrt{-11}=\sqrt{-1}\times \sqrt{11}$ $[\because \sqrt{ab}=\sqrt{a}\sqrt{b}]$

$\sqrt{-11}=i\times \sqrt{11}$ $[\because \sqrt{-1}=i]$

$\sqrt{-11}=\sqrt{11}i$

Here, real part is missing. So, it can be taken as 0.

$\sqrt{-11}=0+\sqrt{11}i$

So, a = 0 and $b=\sqrt{11}$ .

Therefore, the a+bi form of given number is $0+\sqrt{11}i$ .

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3 years ago