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3 years ago

9. (X + 8)^2 - 5 = 0

Mathematics

1 answer:

d1i1m1o1n [39]3 years ago

7 0

Answer:

x + 59 = 0

X= -59

Step-by-step explanation:

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DETERMINE THE MISSING SIDE

MissTica

Answer:

21 in

Step-by-step explanation:

by the Pythagorean theorem we have

$841=400+x^2\\\\x^2=441\\\\x=21$

notice that the 841 and the 400 don't go squared because they already squared!

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2 years ago

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SCORPION-xisa [38]

The answer is D. p=4

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2 years ago

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Eva8 [605]

Answer:

Step-by-step explanation:

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3 years ago

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Theo can paint a fence three times as fast as his sister can. Working together, they can paint a fence in 9 hours. How many hour

Deffense [45]

Answer:

12 hours

Step-by-step explanation:

Let Theo's siste can paint a fence in x times

Given.

Theo can paint a fence three times as fast as his sister can. Working together, they can paint a fence in 9 hours.

$\frac{1}{x}+\frac{1}{3x} =\frac{1}{9}\\\frac{3+1}{3x} =\frac{1}{9} \\\frac{4}{3x}=\frac{1}{9}$

Apply cross multiplication

$x=\frac{9\times 4}{3}\\x=\frac{36}{3} \\x=12hours$

Theo’s sister to paint the fence in 12 hours.

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3 years ago

How to multiply 18 3/8 x 1/4

user100 [1]

Decimal Form:
4.59375

Exact Form:
147/32

Mixed Number Form: 4 19/32

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2 years ago