She practiced 630 hours in all because you multiply 18x35
1.7,400
2.800
3.600
4.3,000
5.1,900
6.500
7.400
8.6,300
9.9,000
10.300
11.200
12. 8,100
13.1,000
14.700
Hope this helps :)
Answer:
<u>Step-by-step explanation:</u>
y = x + 2 x + y = 3
Solve using Substitution Method by replacing y with x + 2:
x + (x + 2) = 3
2x + 2 = 3
2x = 1
x =
Next, replace x with 1/2 in one of the original equations and solve for y:
y = x + 2
= + 2
=
Answer:
There is enough evidence to support the claim that the percentage of residents who favor annexation is more than 47%.
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 1000
p = 47% = 0.47
Alpha, α = 0.05
First, we design the null and the alternate hypothesis
This is a one-tailed(right) test.
Formula:
Putting the values, we get,
Now, we calculate the p-value from the table.
P-value = 0.0056
Since the p-value is lower than the significance level, we fail to accept the null hypothesis and accept the alternate hypothesis.
Thus. the percentage of residents who favor annexation is more than 47%.
Thus, there is enough evidence to support the claim that the percentage of residents who favor annexation is more than 47%.