Answer:
27 degrees
Step-by-step explanation:
5t - 13 = 3t + 3
subtract 3t on both sides
2t - 13 = 3
add 13 to both sides
2t = 16
divide by 2 on both sides
t = 8 degrees
Now, plug in 8 to the measure of x
5(8) - 13 = 27
Answer:
We conclude that the Pennsylvania school district have an IQ higher than the average of 101.5
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 101.5
Sample mean, = 106.4
Sample size, n = 30
Alpha, α = 0.05
Population standard deviation, σ = 15
First, we design the null and the alternate hypothesis
We use one-tailed z test to perform this hypothesis.
Formula:
Putting all the values, we have
Now,
Since,
We reject the null hypothesis and accept the alternate hypothesis.
Thus, we conclude that the Pennsylvania school district have an IQ higher than the average of 101.5
Answer:
12 yd.
Step-by-step explanation:
The y -intercept of the graph of an equation is the y -coordinate of the point in the xy -plane where the graph intersects the y -axis. Thus the y -intercept can be found by setting x = 0
Answer:
pretty sure its like $245+$140 so $385
Step-by-step explanation:
cause timothy has already 140 in his account
so its like 35x7, 35$ each year for 7 years is 245$