Answer:
B.
Step-by-step explanation:
First, the equation must be solved, so x + 6 ≤ -9
Step 1: Subtract 6 from both sides to cancel the +6; The new equation is
x ≤ -15.
This means that the inequality must have a filled in circle starting at -15, and an arrow going to the left because -15 is greater.
For proof, substitute -20 for x:
-20 ≤ -15 ←This is true
I would say D because you can not have a sample size of every student in a city, state, or country
7ftx 9 ft= 63 63 ft is your answer.
Answer:
m<R = 65
Step-by-step explanation:
m<R + m<S + m<T = 180° (sum of interior angles in a triangle)
(5x - 11) + (3x - 3) + (3x + 18) = 180°
Solve for x.
5x - 11 + 3x - 3 + 3x + 18 = 180
Add like terms
11x + 4 = 180
11x = 180 - 4
11x = 176
x = 16
m<R = (5x - 11)
Plug in the value of x
m<R = 5(13) - 11
m<R = 65
Answer:
7 days
Step-by-step explanation:
The watch was set 20 seconds behind already, at the start. The watch has lost 7 more seconds at the rate of 1 second per day.
