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1 year ago

Help me plssss pls do it jk lol

Mathematics

2 answers:

stira [4]1 year ago

7 0

Answer:

13 and 8 is correct. 13+8 = 21

Step-by-step explanation:

kari74 [83]1 year ago

6 0

∑Hey, 0iqman ⊃

Answer:

(b) 13 and 8

Step-by-step explanation:

Given:

Select the pair of numbers that does not sum to 19.

(a) 11 and 8

(b) 13 and 8

(d) 12 and 7

Solve:

(a) 11 and 8 = 11 + 8 = 19

(b) 13 and 8 = 13 + 8 = 21

(d) 12 and 7 = 12 + 7 = 19

Hence, (b) 13 and 8 does not sum to 19.

xcookiex12

8/18/2022

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Answer:

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Step-by-step explanation:

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3 years ago

What formulas do I use to find surface area of cube, rectangular prism, trapezodial prism, triangular prism

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7 0

3 years ago

Suppose a normal distribution has a mean of 79 and a standard deviation of 7. What is P(x ≥ 72)?

Zina [86]

Approximately 65% of the distribution lies within one standard deviation of the mean, which is to say,

P(72 ≤ x ≤ 86) ≈ 0.65

Normal distributions are symmetric, so the percentage of values one standard deviation below the mean is equal to the percentage of values one standard deviation above the mean.

P(72 ≤ x ≤ 79) = P(79 ≤ x ≤ 86)

but since the sum of these make up P(72 ≤ x ≤ 86), we find

P(72 ≤ x ≤ 79) ≈ 0.65/2 = 0.325

Also due to symmetry, exactly half of the distribution lies to either side of the mean; namely,

P(x ≥ 79) = 0.5

It follows that

P(x ≥ 72) = P(72 ≤ x ≤ 79) + P(79 ≤ x)

P(x ≥ 72) = 0.325 + 0.5

P(x ≥ 72) = 0.825 ≈ 0.84

8 0

3 years ago

A number line goes from negative 5 to positive 5. Point D is at negative 4 and point E is at positive 5. A line is drawn from po

Mrac [35]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%28%20%5Cfrac%7B1%7D%7B2%7D%29%5E%7B2%7D%20" id="TexFormula1" title="( \frac{1}{2})^{2} " alt=

Vladimir79 [104]

All you need to do is solve it
$\frac{1}{2} ^{2}$ or $\frac{1}{2} x \frac{1}{2}$
When solved your answer is 0.25 or 1/4
------------------------
What I did to solve it was....

1. Divide top fraction by bottom fraction to get decimal
1 ÷ 2 = 0.5

2. Then multiply 0.5 by its self (the same as putting it to the ^2)
0.5 x 0.5 = 0.25

5 0

3 years ago