The scale factor is 2.5
let me know if you have any ?s
Answer:
$18
Step-by-step explanation:
You save 25% 0f 72 (72x.25)
C=x.19+.25
C means the total cost
X means the extra minutes
Answer: x = 4
Step-by-step explanation: f(2) = 3(2)-1 = 5. Meaning x needs to be a value that makes g(x) = 5. You can set them up equal to each other 5 = 2x-3 and solve. You end up getting x = 4.
"how long..." is asking for time (t). "The amount of time spent in the air" is the time from when the ball was kicked (0 seconds) to the time it landed on the ground. Need to find the x-intercepts (one will be negative which will be invalid). You can do this by factoring ... <em>or by using the quadratic formula.</em> With the equation you provided, it is not factorable, so you must use the quadratic formula.
h = -16t² + 60t + 3
a=-16 b=60 c=3
or
or
t = -0.05 or t = 3.8 <em>disregard the negative</em>
Answer: 3.8 seconds