1. 4x=64
x=26
2. 9x=20
x=9/20
3. 8+5x<70
5x<62
x<12.4
4. 2+x=50
x=52
5. n+5-5<15
n<15
6. x-10=30
x=40
7. x+5=13
x=8
8. a+8=20
a=12
9. x·3=27
x=9
10. x²=2+6
x²=8
x=√8
x=-√8
Answer:
b
Step-by-step explanation:
given s(t) = t³ - 5t then
v(t) = s'(t) = 3t² - 5 and
v(3) = 3(3)² - 5 = 22 m / s, and
a(t) = v'(t) = 6t, then
a(3) = 6 × 3 = 18 m / s²
It’s a straight line, and a straight line equals 180° so it would be:
180=6x+2x+12
180=8x+12
subtract 12 from both sides
168=8x
divide both sides by 8
21=x
the answer is 21 which is the second choice
It's in the same place as the 3, so the value will be 6,000.
