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Lesechka [4]
3 years ago
10

Helpppppp pleaseeeeeee

Mathematics
2 answers:
Allisa [31]3 years ago
8 0

Answer:

88 Inches^2

Step-by-step explanation:

Find the areas of one of the triangles and one of the rectangles, add them together, then multiply by 2.

scZoUnD [109]3 years ago
6 0

it's pretty simple if you look at it! :)

answer : 112

( 4 x 8 + 4 x 8 ) + ( 3 x 8 + 3 x 8 ) = 112

i think

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In the beginning of the study, a randomly selected group of 121 students scored an average of 252 words per minute on the readin
Alborosie

Answer:

Since the sample size is larger than 30, the cognitive psychologist can assume that the sampling distribution of M will be approximately normal.

Step-by-step explanation:

We use the central limit theorem to solve this question.

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, a sample size larger than 30 can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}

So

Since the sample size is larger than 30, the cognitive psychologist can assume that the sampling distribution of M will be approximately normal.

5 0
3 years ago
Multiply and solve for x: x(x + 12) – 8x = 14 + x(x – 4)
erik [133]
Using the distribution method:

x^2 + 12x - 8x = 14 + x^2 - 4x

x^2 + 4x = x^2 - 4x + 14

Now, I'm isolating x by moving all the x's onto one side of the equation:

x^2 - x^2 + 4x + 4x = 14

Combine like terms (x^2 cancels out):

8x = 14

x = 14/8

Simplified: x = 7/4
6 0
3 years ago
Aziza has a triangle with two sides measuring 11 in. And 15 in. She claims that the third side can be any length as long as it i
Lelu [443]

Answer:

The third side can be any length as long as it is greater than 4 in and less than 26 in

Step-by-step explanation:

we know that

The<u> Triangle Inequality Theorem</u>, states that The sum of the lengths of any two sides of a triangle is greater than the length of the third side

Let

x ----> the length of the third side

Applying the triangle inequality theorem

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26 > x

rewrite

x < 26 in

2) 11+x > 15

x> 15-11

x > 4 in

therefore

Aziza's claim is incomplete

The third side can be any length as long as it is greater than 4 in and less than 26 in

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3 years ago
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nasty-shy [4]
He will need seven boxes
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3 years ago
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RideAnS [48]

Answer:

x=71

Step-by-step explanation:

(Base angle of an isosceles triangle)

4 0
3 years ago
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