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Vsevolod [243]
2 years ago
6

I have been having a really hard time with this. if anyone can help me please

Mathematics
1 answer:
Ann [662]2 years ago
7 0

Answer:

long = 8.66

Step-by-step explanation:

pythagorean theorem

short squared + long squared = hypotenuse squared

25 + long squared = 100

long squared = 75

square root of long squared = square root of 75

long = square root of 75

long = 8.66025403784

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How do you write 199.4% as a decimal?
allsm [11]

Answer:

1.994

Step-by-step explanation:

"Percent" means "per 100" or "over 100". To convert 199.4% to a decimal rewrite 199.4 percent in terms of per 100 or over 100.

199.4% = 199.4 over 100 or,

199.4%=199.4100

199.4 over 100 is the same as 199.4 divided by 100. Completing the division we get:

199.4 ÷ 100 = 1.994

Therefore, we have shown that

199.4% = 1.994

Simplified Conversion:

Remove the percent sign % and divide by 100.

199.4 ÷ 100 = 1.994

Shortcut Conversion:

Move the decimal point 2 places to the left and remove the percent sign %

199.4% becomes 1.994

8 0
3 years ago
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alexandr1967 [171]
She could hardly make 1
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3 years ago
What is the substitution for 3x+4y^2 if x= -2 and y=3?
solniwko [45]

Answer:

<h2>30</h2>

Step-by-step explanation:

3x+4y^2\\\\\text{Substitute the value of x = -2 and y = 3 to the expression:}\\\\3(-2)+4(3^2)\qquad\text{use PEMDAS}\\\\=-6+4(9)=-6+36=30

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Forty five men can construct a road 210m long in 60 days. What length would be constructed by 72 men in 50 days assuming that al
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Answer:

280m

Step-by-step explanation:

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(1,1) x=1 y=1

Step-by-step explanation:

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