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myrzilka [38]
3 years ago
11

What is the slope of the line that passes through the points (2, 8) and (6, 12)?

Mathematics
1 answer:
zubka84 [21]3 years ago
5 0
Yeah, where I live, to find the slope (or as we call it, the gradient), you just have to do the two y values subtracted from each other, over the two x values subtracted from each other. The important thing is to remember that if you subtract the first y value from the second (so, 12 - 8), you have to do the same thing for the x (6 - 2)

\frac{12-8}{6-2} = \frac{4}{4} = 1.

The slope is 1. 
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Find the volume of a sphere with a radius of 100yd . Express your answer in terms of pi.
Evgen [1.6K]

Answer:

4/3*100^3*π

Step-by-step explanation:

V = 4/3*π*r^3

= 4/3*π*100^3

≈ 4.18879*10^6

5 0
3 years ago
Explain how to perform a​ two-sample z-test for the difference between two population means using independent samples with known
iren2701 [21]

Answer:

The steps 1-7 have been explained

Step-by-step explanation:

The steps are;

1) We will verify that the population standard deviations are known and that the population is normally distributed which means the sample size must be a minimum of 30.

2) We will state the null and alternative hypothesis

3) We will determine the critical values from the relevant tables

4) From the critical values gotten, we will determine it's corresponding region where it can be rejected.

5)We will calculate the value of the test statistic from the formula;

z = [(x1' - x2') - (μ1 - μ2)]/√[((σ1)²/n1) + ((σ2)²/n2)]

6) If the value of the test statistic gotten from step 5 above falls in the region of rejection noted in step 4,then we will reject the null hypothesis

7) After rejection of the null hypothesis, we will now give a decision/conclusion on the claim.

5 0
3 years ago
Simplify: 5 - 8n - 4n
Arada [10]

Answer:

5-12n is the answer

Step-by-step explanation:

-8n -4n =12ñ

3 0
3 years ago
A- y= -3/2x+8<br> B- y=3/2x+5<br> C- y=2/3x+8<br> D- y=-2/3x+5
Annette [7]

Answer:

I think the right answer is B.

4 0
3 years ago
If it’s right I will mark you Brainly!!
Free_Kalibri [48]

Answer:

y=x+20

or

y= 1x + 20

Step-by-step explanation:

The formula for slope is y= mx+ b

m is the slope and b is the y-intercept (where the line touches the y-axis

4 0
3 years ago
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