Answer:
x ≥5 or 5 ≤x
Step-by-step explanation:
2x ≤ 5x - 15
Subtract 5x from each side
2x-5x ≤ -15
-3x ≤-15
Divide each side by -3, remembering to flip the inequality
-3x/-3 ≥ -15/-3
x ≥5
Check x=10
2*10 ≤5*10 -15
20 ≤50 -15
20 ≤35
True
Answer:
32
Step-by-step explanation:
first angle is 20, let third angle be x, therefore second angle equals 4x; angle in a triangle is 180, so 4x+x+20=180; 5x=160; x=32
Answer:
63
will you mark me brainllest?
Step-by-step explanation:
Answer:
Step-by-step explanation:
<u>Given:</u>
- f(x) = 7x² - 3
- g(x) =
<u>To find f(g(x)), substitute x in f(x) with the value of g(x):</u>
- f(g(x)) =
= 7(2x³) - 3 = 14x³ - 3
This represents the amount of money she earns every hour, where x is the number of hours.
