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3 years ago

Find the slope-intercept form of the equation of a line that passes through the given points.

Mathematics

2 answers:

anygoal [31]3 years ago

7 0

Answer:

y=3x+b

Step-by-step explanation:

finding slope:

slope= y2-y1/x2-x1

-2--5/3-2

3/1

slope is 3

i'm not sure how to find the y-intercept using this format but hope this kinda helped!

Lelu [443]3 years ago

5 0

Answer:

y=3x-11

Step-by-step explanation:

(2,-5) (3,-2)

$\frac{x_{1}-x_{2} }{y_{1}-y_{2} }\\\\$

$\frac{2_{1}-3_{2} }{-5_{1}--2_{2} }\\$

= $\frac{3}{1}$

= 3

y=3x+b

-5=3(2)+b

-5=6+b

-11=b

-----------------------------

Hope I helped!!!! :-)

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sergiy2304 [10]

Answer: 7

Step-by-step explanation:

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2 years ago

Evaulate the function at the indicated values h(t)=t+(3/t)i find h(x-1)

alex41 [277]

h(t)=t34−3t14

Note that the domain of h is [0,∞].

By differentiating,

h'(t)=34t−14−34t−34

by factoring out 34,

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by finding the common denominator,

=34t12−1t34=0

⇒t12=1⇒t=1

Since h'(0) is undefined, t=0 is also a critical number.

Hence, the critical numbers are t=0,1.

I hope that this was helpful.

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3 years ago

Please help me simplify <img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B32%20-%20%20%5Csqrt%7B50%7D%20%7D%20" id="TexFormul

Mnenie [13.5K]

Answer:

$\sqrt{32-5\sqrt{2} }$

Step-by-step explanation: I hope it helps :)

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2 years ago

HELP!! For a right square pyramid, which shape could not be a cross section?

Artyom0805 [142]

Answer:

D. Rectangle

Step-by-step explanation:

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3 years ago

Read 2 more answers

The average monthly cell phone bill was reported to be $50.07 by the U.S. Wireless Industry. Random Sampling of a large cell pho

zalisa [80]

Answer:

The null and alternative hypotheses are:

$H_{0}:\mu= 50.07$

$H_{a}:\mu>50.07$

Under the null hypothesis, the test statistic is:

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

Where:

$\bar{x} = 52.86$ is the sample mean

$s=7.0132$ is the sample standard deviation

$n=10$ is the sample size

$\therefore t=\frac{52.86-50.07}{\frac{7.0132}{\sqrt{10}} }$

$=1.26$

Now, the right tailed t critical value at 0.05 significance level for df = n-1 = 10-1 = 9 is:

$t_{critical}=1.833$

Since the t statistic is less than the t critical value at 0.05 significance level, therefore,we fail to reject the null hypothesis and conclude that there is not sufficient evidence to support the claim that the average phone bill has increased.

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2 years ago