Answer:
=5
Step-by-step explanation:
(5)=-7/2(-2)-7
5=7-7
=5
When the penny hits the ground, h will = 0.
So: Set h(t) = 0 = -4.9t^2 + 0t + 150 m
Then 4.9t^2 = 150, and so t^2 = sqrt(150 / 4.9) = plus or minus 5.53 sec.
We can use only the positive root, as we're measuring time.
t = 5.5 sec (answer)
Answer:
a) 0.356
b) 1.1397
Step-by-step explanation:
a) log₇2
b) log₇ (¹⁴⁷/₁₆)
log (7)
The answer is F.) 0= x^2 - 15x + 54
30%÷100% = 0.30; $85×0.30= $25.50; 85 - 25.50= $59.50.
15%÷100% = 0.15; $59.5 ×0.15 =8.92; 59.50 - 8.92= $50.58
$50.58