Answer:
$2,700
Step-by-step explanation:
Find the total donation amount by dividing 135 by 0.05:
135/0.05
= 2700
So, the class collected $2,700 in all
X=3+√13, 3-√13
substitute y for 0 and solve for x
The rate of the airplane is 300mph per hour.
Answer:
The answer is 11/9
Step-by-step explanation:
Answer:
Mean SAT score for Stevens High graduates are not the same as the national average.
Step-by-step explanation:
We are given the following information in question:
Population mean, μ = 510
Sample mean,
= 501
Sample size, n = 50
Alpha, α = 0.10
Sample standard deviation, s = 30
First, we design the null and the alternate hypothesis

We use Two-tailed t test to perform this hypothesis.
Formula:
Putting all the values, we have,
Now,
Since,
We reject the null hypothesis and fail to accept it.
We accept the alternate hypothesis and mean SAT score for Stevens High graduates are not the same as the national average.