That's point-slope form:
y - y1 = m(x - x1)
Where y1 is the y-value of a point on the line, x1 is the x-value, and 'm' is the slope.
So let's find out what goes in the first blank.
As we can see, they replaced 'x1' with -1, and one of our points have an x-value of -1, that point is (-1, -2), this means y2 must be -2:
y + 2 = m(x + 1)
Now let's find the slope between the two points.
m = y2-y1/x2-x1
m = (10+2)/(3+1)
m = 12/4
m = 3
So the slope is 3, plug that in:
y + 2 = 3(x + 1)
Step-by-step explanation:
Length= 8m
Surface area = ?
Now ,
= 6 × 8 × 8
= 6 × 64
Answer:
x = 5, 4 have a good night hope this is right if not im sorry
Step-by-step explanation:
your welcome
Answer:
f(-2) = 1
Step-by-step explanation:
f(x) = x^2 + 2x + 1
To find the value f(-2), replace x with -2 and evaluate the expression.
f(-2) = (-2)^2 + 2(-2) + 1
f(-2) = 4 - 4 + 1
f(-2) = 1
Answer:
121 degrees
Step-by-step explanation:
Given
Radius r = 18ft
Length of the arc = 38ft
Required
angle of rotation
Using the formula
Length of an arc = theta/360 * 2πr
Substitute the given data
38 = theta/360 * 2π(18)
38 = theta/360 * 113.04
theta/360 = 38/113.04
theta/360 = 0.33616
theta = 0.33616 * 360
theta = 121.02
Hence the angle of rotation to the nearest degree is 121 degrees
