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3 years ago

QUICK PLEASE!!!

Mathematics

1 answer:

Leni [432]3 years ago

7 0

A^2 + b^2 = c^2
a^2 = c^2 - b^2
a = square root of (c^2 - b^2)

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A large rectangular office measures 9 yards by 15 yards. What is the area of the office?

vova2212 [387]

Answer:

135

Step-by-step explanation: 9x15=135

4 0

2 years ago

Read 2 more answers

In a study of computer use, 1000 randomly selected Canadian Internet users were asked how much time they spend using the Interne

Dvinal [7]

Answer:

b. Do not reject H0. We do not have convincing evidence that the mean weekly time spent using the Internet by Canadians is greater than 12.7 hours.

Step-by-step explanation:

Given that in a study of computer use, 1000 randomly selected Canadian Internet users were asked how much time they spend using the Internet in a typical week. The mean of the sample observations was 12.9 hours.

$H_0: \bar x =12.7\\H_a: \bar x >12,7$

(Right tailed test at 5% level)

Mean difference = 0.2

Std error = $\frac{6}{\sqrt{1000} } \\=0.1897$

Z statistic = 1.0540

p value = 0.145941

since p >alpha we do not reject H0.

b. Do not reject H0. We do not have convincing evidence that the mean weekly time spent using the Internet by Canadians is greater than 12.7 hours.

5 0

3 years ago

The perimeter of the square below is 36. What is the length of the diagonal, x? A.6 B.9 C.62–√ D.92–√

siniylev [52]

Answer:

9 $\sqrt{2}$

Step-by-step explanation: did it

4 0

3 years ago

The in center is the center of the circle of a triangle

Lana71 [14]

Answer:

inscribed

Step-by-step explanation:

For any given triangle, the circle inside of it is called the Inscribed circle

4 0

2 years ago

HURRY PLZ!!!

nasty-shy [4]

Answer:

D) no solution

Step-by-step explanation:

1/ (x-2) + 1/(x+2) = 4/(x^2-4)

x cannot equal 2 or -2 since that would make our fractions equal 1/0 or be undefined

Factor the term on the right

1/ (x-2) + 1/(x+2) = 4/(x-2)(x+2)

Multiply both sides by (x-2) (x+2)

(x-2) (x+2) (1/ (x-2) + 1/(x+2)) = 4/(x-2)(x+2)*(x-2) (x+2)

Distribute

x+2 + (x-2) = 4

Combine like terms

2x = 4

Divide by 2

2x/2 = 4/2

x =2

But this is not a possible solution since that is not in the domain

6 0

3 years ago