3 years ago

-91/12 reduced to in simplest form

1 answer:

3 0

First, you have to make it into a mixed number : - 7 7/12. Since -7 7/12 can't be simplified anymore, it's the final answer

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3a. The average for the statistics exam was 75 and the standard deviation was 8.

hjlf

Answer:

Step-by-step explanation:

The formula to when given the number of standard deviations below the mean x =μ - nσ

Where:

x = raw score

μ is the population mean = 75

σ is the population standard deviation = 8.

n = number of standard deviations below the mean

Hence

x = 75 - 1.5 × 8

x = 75 - 12

x = 63

Therefore, Andrey's exam score is 63

3 0

2 years ago

Find the value of the expression

Cloud [144]

The value of expression is 41

6 0

2 years ago

Whats the distance between point A (-2,-1) and point B (3,2)

Wewaii [24]

Answer:

d = √34

Step-by-step explanation:

(-2, -1) & (3, 2)

d = √[(x₂ - x₁)² + (y₂ - y₁)²]

d = √[(3 + 2)² + (2 + 1)²]

d = √[(5)² + (3)²]

d = √(25 + 9)

d = √34

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2 years ago

Harold has decided to build eight feet tall walls for a house. According to the 1/2”=1’ scale convention, what will be the lengt

Levart [38]

4 inch would be the answer.

Half of 8 is 4

7 0

3 years ago

The total surface area of this cuboid is 112cm squared find the value of x

soldier1979 [14.2K]

Answer:

$x=2\sqrt{\frac{14}{3}}\ units$ or $x=\frac{2}{3}\sqrt{42}\ units$

Step-by-step explanation:

we know that

The surface area of a cube is equal to

$SA=6x^{2}$

where

x is the length side of a cube

In this problem we have

$SA=112\ cm^{2}$

substitute in the formula and solve for x

$112=6x^{2}$

$x^{2}=112/6$

square root both sides

$x=\sqrt{\frac{112}{6}}\ units=2\sqrt{\frac{14}{3}}\ units=\frac{2}{3}\sqrt{42}\ units$

5 0

2 years ago

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