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3 years ago

How to find the x-intercept of of y+12=3(x-9)?

1 answer:

7 0

To find the x intercept, sub in 0 for y and solve for x

y + 12 = 3(x - 9)
0 + 12 = 3x - 27
12 = 3x - 27
12 + 27 = 3x
39 = 3x
39/3 = x
13 = x.....so ur x int is 13 or (13,0) <==

and if u wanted to find the y int, u could sub in 0 for x and solve for y

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X÷ 5+1 = 11 X = What does X =

Serjik [45]

Answer:

x = 2

Step-by-step explanation:

x/5 + 1 = 11
x/5 = 10
x = 50

7 0

2 years ago

For what value of b makes this equation true? (Solve for b) b +9 = -2

neonofarm [45]

━━━━━━━☆☆━━━━━━━

▹ Answer

b = -11

▹ Step-by-Step Explanation

b + 9 = -2

-9 -9

b = -2 - 9

b = -2 + -9

b = -11

Hope this helps!

- CloutAnswers ❁

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7 0

3 years ago

Read 2 more answers

In class A, John got 85 for his first test John's class mean was 75 and standard deviation was 5. In class B, Kathy got 80 in he

ivanzaharov [21]

Answer:

b. Kathy

Step-by-step explanation:

We compare each of their score by how far away from the mean when in term of the standard deviation. Using the following formula

$\frac{x - \mu}{\sigma}$

For John he is (85 - 75)/5 = 2.

For Kathy she is (80 - 50)/10 = 3.

Since Kathy is 3 standard deviation better than her class' average, while John is only 2's. We conclude that Kathy did better.

6 0

3 years ago

I am an Ethiopian girl and if u want help I can and I can befriend

vekshin1

Answer:

what does Ethipoin girl

Step-by-step explanation:

my english s not enougj but i can be ur bf

8 0

2 years ago

What is the distance to the earth’s horizon from point P? Express your answer as a decimal

rewona [7]

Answer:

The distance to the earth's horizon from point P is 216.2198187 mi, appriximately 216.22 mi

Step-by-step explanation:

This is a right triangle:

Hypotenuse: c=3959 mi + 5.9 mi → c=3964.9 mi

Leg 1: a=x=?

Leg 2: b=3959 mi

Using the Pytagorean theorem:

a^2+b^2=c^2

Replacing the known values:

(x)^2+(3959 mi)^2=(3964.9 mi)^2

Solving for x: Squaring:

x^2+15,673,681 mi^2=15,720,432.01 mi^2

Subtracting 15,673,681 mi^2 both sides of the equation:

x^2+15,673,681 mi^2-15,673,681 mi^2=15,720,432.01 mi^2-15,673,681 mi^2

x^2=46,751.01 mi^2

Square root both sides of the equation:

sqrt(x^2)=sqrt(46,751.01 mi^2)

x=216.2198187 mi

x=216.22 mi

3 0

3 years ago