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guapka [62]
3 years ago
14

What is the answer to 11≥3+4u

Mathematics
2 answers:
faltersainse [42]3 years ago
5 0

Answer:

u ≤ 2

Step-by-step explanation:

11 ≥ 3+4u    (subtract 3 from both sides)

11  -  3  ≥ 4u

8  ≥ 4u  (divide both sides by 4)

2 ≥ u

or

u ≤ 2

slega [8]3 years ago
3 0

Answer:

u <u><</u> 2

Step-by-step explanation:

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For the diagram below, which equation is the correct use of the distance<br> formula?
photoshop1234 [79]

9514 1404 393

Answer:

  D

Step-by-step explanation:

Any equation that does not have y2 as the first term in the second set of parentheses will be incorrect.

The correct usage is shown in equation D.

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2 years ago
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What are the numbers of symmetries for this figure?
mrs_skeptik [129]

Answer:

rotational symmetry: 2

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Step-by-step explanation:

I took the test

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3 years ago
What is the value of the square root of 36
irakobra [83]
6

Like how 6^{2} = 36

Square root does the opposite.

Edit: my mistake, it is 6
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2 years ago
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People tend to evaluate the quality of their lives relative to others around them (Frieswijk et al., 2004). In one study, resear
Alborosie

Answer:

Step-by-step explanation:

Hello!

Research.

n=9 frail elderly were interview and compared to a fictitious person who was worse off then the interviewee, a life-satisfaction score was determined for each person.

18, 23, 24, 22, 19, 27, 23, 26, 25

Assuming that the population average score is μ= 20, the researchers think that the elderly in the sample are more or less satisfied than others in the general population.

a. You have the information of one sample, assuming this sample has a normal distribution and each elderly interviewed is independent, then the t-test of choice is a one-sample t-test.

b. and c. If you say that the elderly are "more or less" satisfied than the others, this means that they are either as satisfied as to the general population or not satisfied as to the general population. Symbolically:

H₀: μ = 20

H₁: μ ≠ 20

This is a two-tailed test, meaning, you will have two critical regions.

d.  

α: 0.05

Left critical value: t_{n-1;/\alpha 2} = t_{8; 0.025}= -2.306

Right critical value: t_{n-1;1-\alpha /2} = t_{8;0.975} = 2.306

e.

t_{H_0}= \frac{X[bar]-Mu}{\frac{S}{\sqrt{n} } } ~t_{n-1}

X[bar]= 23

S= 3

t_{H_0}= \frac{23-20}{\frac{3}{\sqrt{9} } }= 3

f.

Considering that the calculated t-value is greater than the right critical value, the decision is to reject the null hypothesis, so using a significance level of 5% you can conclude that the average life-satisfaction score of the elderly is different than 20.

I hope it helps!

7 0
3 years ago
Evaluate.<br> 13[42–(2+4)]
german

Answer:

468

Step-by-step explanation:

=13[42-6]

=13 (36)

=13×36

=468

6 0
3 years ago
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