The range of the data is C. 160 because the biggest number, 280, subtracted by the smallest number, 120, is equal to 160.
Answer:
0.10
Step-by-step explanation:
Technically it's 0.12 but I only say this because they rounded by from 58 to 60 in their question
Answer:
x = 71°
Option B is correct answer.
Step-by-step explanation:
We need to find for what value of x is
, where 0°< x < 90°?
Solving:

So, we get x = 71°
Option B is correct answer.
Answer:
x = -14
Step-by-step explanation:
Simplifying
7x + 156 = 9x + 184
Reorder the terms:
156 + 7x = 9x + 184
Reorder the terms:
156 + 7x = 184 + 9x
Solving
156 + 7x = 184 + 9x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-9x' to each side of the equation.
156 + 7x + -9x = 184 + 9x + -9x
Combine like terms: 7x + -9x = -2x
156 + -2x = 184 + 9x + -9x
Combine like terms: 9x + -9x = 0
156 + -2x = 184 + 0
156 + -2x = 184
Add '-156' to each side of the equation.
156 + -156 + -2x = 184 + -156
Combine like terms: 156 + -156 = 0
0 + -2x = 184 + -156
-2x = 184 + -156
Combine like terms: 184 + -156 = 28
-2x = 28
Divide each side by '-2'.
x = -14
Simplifying
x = -14