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3 years ago

How to do this cause I'm very lost

Mathematics

1 answer:

Jlenok [28]3 years ago

5 0

You put the 0 if it is close to 0, the 1/2 if it is closer to half, 1 if it is equal or closer to one, and the >1 if it is over one

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SorryI forgot the screenshot the 1st time so here it is

Cerrena [4.2K]

The coefficient is -9
not 9.

Explanation:
The coefficient is whatever numbers come before a variable. And it’s the numbers actual value, not it’s absolute value. So the answer is -9

Hope this helps!

7 0

2 years ago

Read 2 more answers

What is the order of the matrix? (see picture) a.2x3 b.3x5 c.5x3 d.3x2

Lana71 [14]

Step-by-step explanation:

Matrix has 5 rows and 3 columns.

So it's order is 5x3.

6 0

3 years ago

1. What is the measure of angle PSQ? 80° 140°

Anna11 [10]

140 degrees because an angle of a circle is 360 degrees and you can subtract these angles from it to get 140 degrees

3 0

2 years ago

Read 2 more answers

each morning a gardener uses 24 1/2 gallons of water from a metal reservoir.each afternoon,she adds 15 1/4 gallons of water to t

Alika [10]

Every day, the volume increases by 24 1/2+15 1/4=39 3/4 gallons. So after 5 days, the volume increases by 39 3/4 * 5 = 795/4= 198.75 gallons

3 0

3 years ago

A manufacturer of running shoes knows that the average lifetime for a particular model of shoes is 15 months. Someone in the res

AveGali [126]

Answer:

The decision rule is

Fail to reject the null hypothesis

The conclusion is

There is no sufficient evidence to show that the designer's claim of a better shoe is supported by the trial results.

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 15 \ months$

The sample size is n = 25

The sample mean is $\= x = 17 \ months$

The standard deviation is $s = 5.5 \ months$

Let assume the level of significance of this test is $\alpha = 0.05$

The null hypothesis is $H_o : \mu = 15$

The alternative hypothesis is $H_a : \mu > 17$

Generally the degree of freedom is mathematically represented as

$df = n -1$

=> $df = 25 -1$

=> $df = 24$

Generally the test statistics is mathematically represented as

$t = \frac{\= x- \mu }{\frac{s}{\sqrt{n} } }$

=> $t = \frac{ 17 - 15 }{\frac{5.5}{\sqrt{25} } }$

=> $t = 1.8182$

Generally from the student t distribution table the probability of obtaining $t = 1.8182$ to the right of the curve at a degree of freedom of $df = 24$ is

$p-value = P(t > 0.18182 ) = 0.4286$

From the value obtained we see that $p-value > \alpha$ hence

The decision rule is

Fail to reject the null hypothesis

The conclusion is

There is no sufficient evidence to show that the designer's claim of a better shoe is supported by the trial results.

7 0

2 years ago