A. 22.63
B. 9.67
C. 90.33
I’m not sure if C is correct because I might not of been working by the correct equation
Perhaps you want to know what the number is?
3n -8 = 7
3n = 15 . . . . . add 8
n = 5 . . . . . . . divide by 3
The number is 5.
Answer:
y = -1/2 x + 2
Step-by-step explanation:
Which of the following equations describes the line shown below? Check all
that apply.
(-4, 4)
(2, 1)
The standard equation of a line is y = mx,+b
m is the slope
b is he y-inttercept
Get the slope
Slope m = y2-y1/x2-x1
Substitute the coordinate
M = 1-4/2-(-4)
M = -3/6
M = -1/2
Substitute m= -1/2 and (2,1) into y = mx+b
1 = -1/2(2)+b
1 = -1+b
b = 1+1
b=2
Get the equation
Recall y =mx+b
y = -1/2 x + 2
First, you need to get rid of the parenthesis, so you need to distribute:
12(–1.4m + 0.4) = m + 0.2
-16.8m + 4.8 = m +0.2
Then subtract both sides by m:
-16.8m - m + 4.8 = m +0.2 - m
-17.8m + 4.8 = 0.2
Subtract both sides by 4.8:
-17.8m + 4.8 - 4.8 = 0.2 - 4.8
-17.8m = -4.6
Now, divide both sides by -17.8:
-17.8m/-17.8 = -4.6/-17.8
m ≈ 0.258
Answer:
60
Step-by-step explanation:
The small triangle has a perimeter of 7 inches.
So, since you can fit 3 triangles down the left side of the triangle, you would multiply 7 by 3 to get 21.
Then, since the other side is the same length, multiply 21 by 2 to get 42.
Next, you add 18 to 42 because at the bottom of the picture, it says 18 inches.
That's how you get a perimeter of 60 inches.
