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zhannawk [14.2K]
3 years ago
13

Find the slope of the line between (-3,6)and (-5,9)

Mathematics
2 answers:
m_a_m_a [10]3 years ago
8 0

Answer:

-\frac{3}{2}

Step-by-step explanation:

you have the points:

(-3,6) -> where x_{1}=-3,y_{1}=6

and

(-5,9) -> where x_{2}=-5,y_{2}=9

and then we use the equation for the slope m:

m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

substituting values:

m=\frac{9-6}{-5-(-3)}=\frac{3}{-5+3}=\frac{3}{-2}=

the slope between the points is -3/2

yanalaym [24]3 years ago
7 0

Your slope will be -3/2x

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daniel's age in x years is 2+x

when will ben's age in x years be 3 times of daniel's age in x years
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7 0
3 years ago
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when 55 is added to a certain number and the sum is divided by 3 , the result is 4 times the original number what is the origina
gogolik [260]

Answer:

4.99

Step-by-step explanation:

i cant remember how i got 4.99 but can show u how to check

= 55 +<u> 4.99 </u>= 59.99

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7 0
3 years ago
Change to an algebraic expression <br>Half the sum of p and 9​
shepuryov [24]

Step-by-step explanation:

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4 0
3 years ago
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A researcher wishes to estimate the proportion of adults who have​ high-speed Internet access. What size sample should be obtain
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Step-by-step explanation:

The formula for sample size needed for interval estimate of population proportion :-

n=p(1-p)(\frac{z_{\alpha/2}}{E})^2

Given : The significance level : \alpha=1-0.95=0.05

Critical value : z_{\alpha/2}}=z_{0.025}=\pm1.96

Previous estimate of proportion : p=0.32

Margin of error : E=0.01

Now, the required sample size will be :-

n=0.32(1-0.32)(\frac{1.96}{0.01})^2=8359.3216\approx8359

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Answer:

4

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