Slope formula:
y2 - y1
_____
x2 - x1
5 + 16
_____
18 + 8
21
__
26
slope is 21/26
Answer:
H0: p = 0.078
Ha: p ≠ 0.078
Step-by-step explanation:
The researchers say that the rate is about 7.8%, or 0.078 as a decimal. That makes that the null hypothesis because using "is" in math is the same as saying "equals" and the null hypothesis always has the statement of equality in it. The reason there is a not equals to sign in the alternate is for this reason as well. The researchers say it is about that amount, not more or less than that amount. So it makes this a 2 tailed test. If the amount is significantly higher or lower, then we might have to reject the null hypothesis depending on the outcome of the test.
Answer:
4y = -x + 9
Step-by-step explanation:
2y = 8x - 6
Divide through by 2:-
y = 4x -3 so the slope of this line = 4
Slope of the line perpendicular to this = -1/4
So using the point/slope form of an equation of a line and the point (-3,3) we have:-
y - 3 = -1/4(x - -3)
y = -1/4x - 3/4 + 3
y = -1/4 x + 9/4 Multiply through by 4:-
4y = -x + 9
