Answer:
B
Step-by-step explanation:
When interpreting a confidence level, we say that if we were to select many random samples of the same size from the same population and construct a 95% confidence interval using each sample, about 95% of the intervals would capture the true proportion of registered voters that plan vote for the incumbent president.
The domain is {-9,-4,3,9}
The range is {2}
You multiply each side of the sides and then divide if needed
Answer:
x=38
Step-by-step explanation:
(2x+5)=(3x-33)
2x-3x=-33-5
-x=-38
x=38
Answer:
1. x = 1, y = -3
2. x = 3, y = 4
Step-by-step explanation:
Here, we want to solve the sets of simultaneous equations;
a) -y = 5x-2
-3y = -5x + 14
substitute 1 into ii
3(5x-2) = -5x + 14
15x - 6 = -5x + 14
15x + 5x = 14 + 6
20x = 20
x = 20/20
x = 1
from;
-y = 5x - 2
y = -5x + 2
y = -5(1) + 2
y = -3
b) -2y = -6x + 10
2y = x + 5
Substitute ii into i
-(x + 5) = -6x + 10
-x - 5 = -6x + 10
-x + 6x = 10 + 5
5x = 15
x = 15/5
x = 3
2y = x + 5
2y = 3 + 5
2y = 8
y = 8/2
y = 4
