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2 years ago

.What is the rate of change of the line that passes through (8,6) and (12,14)?

1 answer:

3 0

This way u can get the answer

First, there are several terms that mean SLOPE"
m in y = mx + b
rate of change
incline
grade
"rise over run"
slant
incline
. . .

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Sofia hits a softball straight up. the equation h= -16t^2 + 90t models the height h, in feet, of the ball after t seconds. How l

andrezito [222]

It is in the air 5.625 seconds.

Using the quadratic formula,

$t=\frac{-b\pm \sqrt{b^2-4ac}}{2a}
\\
\\=\frac{-90\pm \sqrt{90^2-4(-16)(0)}}{2(-16)}
\\
\\=\frac{-90\pm \sqrt{8100-0}}{-32}
\\
\\=\frac{-90\pm \sqrt{8100}}{-32}=\frac{-90\pm90}{-32}
\\
\\=\frac{-90+90}{-32}\text{ or }\frac{-90-90}{-32}=\frac{0}{32}\text{ or }\frac{-180}{-32}
\\
\\=0\text{ or }5.625$

0 is when the ball is first launched, 5.625 is when it hits the ground again.

4 0

2 years ago

3. Write an equation in slope-intercept form of the line that passes

kirill115 [55]

Answer:

B. y = 2x - 9

Step-by-step explanation:

All of the answer choices has a slope of 2, but B is the only answer choice that has (4,-1) on its line.

You can tell by plugging the point into the equation and seeing if the result is true.

y = 2x - 9

-1 = 2(4) - 9

-1 = 8 - 9

-1 = -1

4 0

2 years ago

Read 2 more answers

Helpppppp guyssss pleaseeeeeee I’m losttt

Nimfa-mama [501]

Answer:

Step-by-step explanation:

Use definition of conditional probability:

$P(A|B)=\dfrac{P(A\cap B)}{P(B)},$

where

A = the student is a freshman,

B = the student is a male

From the table,

$P(B)=\dfrac{4+6+2+2}{4+6+2+2+3+4+6+3}=\dfrac{14}{30}=\dfrac{7}{15}\\ \\P(A\cap B)=\dfrac{4}{4+6+2+2+3+4+6+3}=\dfrac{4}{30}=\dfrac{2}{15}$

So,

$P(A|B)=\dfrac{\frac{2}{15}}{\frac{7}{15}}=\dfrac{2}{7}\approx 0.29=29\%$

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2 years ago

My grades is they good or bad on your opinion

Oxana [17]

Good!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

6 0

2 years ago

Which equation is modeled below?

masha68 [24]

Answer:

your answer is b bud... your welcome....

Step-by-step explanation:

just took the test

5 0

2 years ago

.What is the rate of change of the line that passes through (8,6) and (12,14)? ​

.What is the rate of change of the line that passes through (8,6) and (12,14)?