11. 18=10+x
x=8
8/4= 2 hours (because there are 8,15 min periods, 4,15 min per 1 hour)
12. 1.44 x 10⁸
13. 2 x 10¹²
16 because 132-4=128 128/8= 16
Answer:
12
Step-by-step explanation:
f(x) = 7(x – 2) + 4(x + 1)
Let x =2
f(2) = 7(2 – 2) + 4(2 + 1)
=7(0) +4(3)
= 0+12
= 12
Answer:
19 = 5x - 1 Given
19 + 1 = 5x - 1 + 1
20 = 5x Addition Property of Equality
20 : 5 = 5x : 5
4 = x Division Property of Equality
Hope it helps! ( • ω • )