Answer:
See Below
Step-by-step explanation:
For each of these, you just replace x with what's in the parenthesis.
f(-2) = 4(-2)^2 - 2(-2) + 1
f(-2) = 16 + 4 + 1
f(-2) = 21
g(5) = ![\sqrt{4(5) - 16}](https://tex.z-dn.net/?f=%5Csqrt%7B4%285%29%20-%2016%7D)
g(5) = ![\sqrt{20-16}](https://tex.z-dn.net/?f=%5Csqrt%7B20-16%7D)
g(5) = ![\sqrt{4}](https://tex.z-dn.net/?f=%5Csqrt%7B4%7D)
g(5) = 2
f(3r) = 4(3r)^2 - 2(3r) + 1
f(3r) = 4(9r^2) - 6r + 1
f(3r) = 36r^2 - 6r + 1
f(a+b) = 4(a+b)^2 - 2(a+b) +1
f(a+b) = 4 (a^2 + 2ab + b^2) - 2a - 2b + 1
f(a+b) = 4a^2 + 8ab + 4b^2 - 2a - 2b + 1
You are adding 2 each time.
4 terms are given to you, with 5th term being 2
20 - 5 = 15
Multiply 15 with 2
15 x 2 = 30
Add the number gotten with the last number given
30 + 2 = 32
32, or (A) is your answer
hope this helps
9 miles every week + 15 miles every weekend = 24 miles every 7 days =
24/7 = 3 3/7 miles per day
x = number of hours
want to find probability (P) x >= 13
x is N(14,1) transform to N(0,1) using z = (x - mean) / standard deviation so can look up probability using standard normal probability table.
P(x >= 13) = P( z > (13 - 14)/1) = P(z > -1) = 1 - P(z < -1) = 1 - 0.1587 = 0.8413
To convert that to percentage, multiply 100, to get 84.13%
$310 dollars because after it res and decreased it gained $.10 and 100 x 3 is 300 so thats before you calculate how much it rose so .10 x 100 is 10 so add that to 300 and you get 310