Y = 0.95X 7.95 Write and solve a linear equation to find how many songs he downloaded

Nina can type 128 words is 4

Rama09 [41]

Answer:

1920

Step-by-step explanation:

Nina can type 128 words is 4 minutes. At this rate, how many words can Nina type in an hour?

60 divided by 4 is 15

15x128= 1920

4 0

3 years ago

The area of a circle is 9π in². What is the circumference, in inches? Express your answer in terms of \piπ

dangina [55]

Answer:

$6\pi$ in

Step-by-step explanation:

The formula to find the area of a circle: $\pi r^{2}$ , where $r$ is the radius.

The formula to find the circumference (perimeter) of a circle: $2\pi r$ , where $r$ is the radius.

1) To find the circumference of the circle, we need to find the radius ( $r$ ) first. Since the area of the circle is given to us, we need to equate this to the formula to find the area of a circle.

$9\pi =\pi r^2$

Cancel the $\pi$ by bringing it to the other side.

$9 =\pi r^2$ ÷ $\pi$

$9 = r^2\\\sqrt{9} = r\\3 = r$

2) Find the circumference of the circle by using the formula, $2\pi r$ .

= $2*\pi *3$

= $6\pi$ in

3 0

3 years ago

Describe the transformation(s) on the graph of the parent function f(x) = x that results in the graph of g(x).g(x) =(−3/4)x + 1

tiny-mole [99]

Answer:

Graph the function and its parent function. Then describe the transformation. 7.9(x) = x + 4. 8. f(x) = x - 6. 4. 8 x. -4. 48 x. Describe Transformation:.Step-by-step explanation:

4 0

3 years ago

What is the equation of the line slope of 3 and passes through the point (-2, 3)?

elixir [45]

Answer:

$\large\boxed{y-3=3(x+2)}\qquad\text{point-slope form}\\\boxed{y=3x+9}\qquad\text{slope-intercept form}\\\boxed{3x-y=-9}\qquad\text{standard form}\\\boxed{3x-y+9=0}\qquad\text{general form}$