d = dimes
q = quarters
d=10+q
0.25q +0.10d = 3.45
0.25q + 0.10(10+q) = 3.45
0.25q + 1 +0.10q =3.45
0.35q=2.45
q = 2.45/0.35 = 7
d = 10+7 =17
0.25*7=1.75, 17*0.10 = 1.70, 1.75+1.70 = 3.45
she has 7 quarters and 17 dimes for a total of 24 coins
Answer:
use 5th and the 95th percentile of these values.
Step-by-step explanation:
To find the 90% confidence interval for the population standard deviation, randomly sample with replacement from the original sample thousands of times. From each new sample, you compute the sample standard deviation. Using the bootstrap method, we can find the 90% confidence interval for the population standard deviation,from the values of 5th and the 95th percentile of these values.
So we need to use 5th and the 95th percentile of these values.
Answer:
f(3) = -1
Step-by-step explanation:
given f(x) = -x + 2
to find f(3), we have to replace x with 3
f(3) = -3 + 2
f(3) = -1
The answer is d. 8,120 foot-pounds
Answer:
16
Step-by-step explanation:
(3x - 1) + 2
(3(5) - 1) + 2
(15 - 1) + 2
14 + 2
16