3 years ago

Which expression is equivalent to √-80? 4√5 -4√5 -4i √ 5 4i √ 5

Mathematics

1 answer:

miskamm [114]3 years ago

6 0

Answer:

4i√5

Step-by-step explanation:

$\sqrt{-80}=\sqrt{(-1)(16)(5)}=\sqrt{-1}\cdot\sqrt{16}\cdot\sqrt{5}=4i\sqrt{5}$

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What is the range for the scores: 13, 23, 60, 46, 53, 75.

vova2212 [387]

Hello there.

Question: <span>What is the range for the scores: 13, 23, 60, 46, 53, 75.

Answer: Range is the largest value minus the smallest answer:
75 - 13 = 62.
The range is 62.

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3 years ago

Line segments AB and CD intersect at point E. Ray EF extends from point E.

Tom [10]

Answer:

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Step-by-step explanation:

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3 years ago

THIRTY POINTS!!!!!!!! Write a numerical expression for the phrase ‘the quotient of 27 and the sun of -2 and -7’ then simplify it

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27 ÷ (-2 + (-7))

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3 years ago

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The ratio of the measures of the three angles in a tangle 3107. Find the measures of the angles and write them in size order,

N76 [4]

Answer:

27, 90 and 63

Step-by-step explanation:

Given

Ratio of triangle sides

$Ratio = 3 : 10 : 7$

Required:

The length of each side

Triangles in a triangle add up to 180.

The side with ratio 3 is:

$S_1 = \frac{3}{3 + 10 + 7} *180$

$S_1 = \frac{3 *180}{20}$

$S_1 = \frac{540}{20}$

$S_1 = 27$

The side with ratio 10 is:

$S_2 = \frac{10}{3 + 10 + 7} *180$

$S_2 = \frac{10 *180}{20}$

$S_2 = \frac{1800}{20}$

$S_2 = 90$

Lastly:

The side with 7 as its ratio

$S_3 = \frac{7}{3 + 10 + 7} *180$

$S_3 = \frac{7 *180}{20}$

$S_3 = \frac{1260}{20}$

$S_3 = 63$

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3 years ago

There is a small pond which is 8 metres long, 4 metres wide and 2 metres deep. What is the volume of the pond?

Rama09 [41]

8 x 4 x 2 = 64
Therefore the volume of the pond is equal to 64m³

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3 years ago

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