3 years ago

Simplify the expression (8-√5)(8+√5) 39 59 64+√5 69+16√5

Mathematics

1 answer:

irakobra [83]3 years ago

4 0

Using the identity a^2 - b^2 = (a - b)(a + b):-

this is 8^2 - (sqrt5)^2 = 64 - 5 = 59 Answer

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F (x) = 3x^2+ 5 x -14

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Here is the answer

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2 years ago

The claim is that the white blood cell counts of adult females are normally distributed, with a standard deviation equal to 1.6

maxonik [38]

Answer:

78.46

Step-by-step explanation:

Given that

Pop. Standard deviation = 1.61

Sample standard deviation = 2.15

Sample mean = 7.47

Sample size = 45

Recall that

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3 years ago

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At the start of a mission, international spy James withdrew $5,000 in Cairo. In Istanbul, he withdrew half of the remaining mone

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Answer:

Initial Amount at the start of the mission $=\$20000$

Step-by-step explanation:

Let initial amount $=x$

In Cario James withdrew $\$5000$ .

Remaining Amount $=x-5000$

In Instanbul he with drew half of the remaining amount so half of the remaining amount will be left.

$\frac{1}{2}\times(x-5000)=7500\\\\x-5000=15000\\\\x=20000$

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3 years ago

The costs for going to a dog are $7 for 1 dog, and $2 for each additional dog. Write an equation to show this situation, where x

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7+2x
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3 years ago

What’s the total area of a rectangular prism with a height of 17 feet, a width of 12feet, and a thickness of 10feet?

Bad White [126]

Answer:

988 feet________________

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2 years ago