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2 years ago

What is the slope of the line that passes the points(6,2) and (12,-2)

1 answer:

5 0

The slope is -2/3.

You have to do -2-2 and you get -4.
Then you do 12-6 and you get 6.
The final step is to do -4 divide 6 and you get -2/3.

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The quotient of 9 and c

Fynjy0 [20]

Answer:

The quotient of a number and 9 means n divided 9.

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2 years ago

A sample of 5 strings of thread is randomly selected and the following thicknesses are measured in millimeters. Give a point est

xxTIMURxx [149]

Answer:

Point estimate for the population variance = 3.92 * $10^{-3}$ .

Step-by-step explanation:

We are given that a sample of 5 strings of thread is randomly selected and the following thicknesses are measured in millimeters ;

X X - $Xbar$ $(X-Xbar)^{2}$

1.13 1.13 - 1.188 = -0.058 3.364 * $10^{-3}$

1.15 1.15 - 1.188 = -0.038 1.444 * $10^{-3}$

1.24 1.24 - 1.188 = 0.052 2.704 * $10^{-3}$

1.27 1.27 - 1.188 = 0.082 6.724 * $10^{-3}$

$\sum (X-Xbar)^{2}$ = 0.01568

Firstly, Mean of above data, $Xbar$ = $\frac{\sum X}{n}$ = $\frac{1.15+1.24+1.15+1.27+1.13}{5}$ = 1.188

Point estimate of Population Variance = Sample variance

= $\frac{\sum (X-Xbar)^{2}}{n-1}$ = $\frac{0.01568}{4}$ = 3.92 * $10^{-3}$ .

Therefore, point estimate for the population variance = 3.92 * $10^{-3}$ .

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3 years ago

Read 2 more answers

If a parabola opens down, what is true about its quadratic function

Nadya [2.5K]

Answer:

The vertex is the minimum.

Step-by-step explanation:

the vertex represents the lowest point on the graph, or the minimum value of the quadratic function.

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2 years ago

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3 years ago

At Silver Gym, membership is $35 per month, and personal training sessions are $30 each. At Fit Factor,

Vanyuwa [196]

Answer:

5 sessions each

Step-by-step explanation:

Let the personal training sessions be x.

Then at Silver Gym Sarah would spend:

35 + 30x

And at Fit Factor she would spend:

85 + 20x

Since total costs are same, the amounts will be equal:

35+30x = 85 + 20x
30x - 20x = 85 - 35
10 x = 50
x= 50/10
x= 5

So Sarah would buy 5 training sessions for each of the gyms.

And she would spend $185 at each.

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2 years ago

What is the slope of the line that passes the points(6,2) and (12,-2)​

What is the slope of the line that passes the points(6,2) and (12,-2)