J)x^2 +2x +yx+2y-5x-10
x^2-3x+yx-10
k)5y^2(1-2y)
l)a(x+y+z)
Answer:
test statistic is ≈ -0.36
p-value is ≈ 0.64
There is no significant evidence that the average golfer can hit the ball more than 235 yards on average.
Step-by-step explanation:
a hypothesis test where H_0: mu = 235 and H_1:mu > 235
test statistic can be calculated as follows:
z=
where
- sample mean driving distance (233.8 yards)
- M is the average expected distance that the average golfer can hit the ball under null hypothesis. (235 yards)
- s is the standard deviation (46.6 yards)
- N is the sample size (192)
Then test statistic is z=
=-0.3568
p-value is 0.64 >0.05
There is no significant evidence that the average golfer can hit the ball more than 235 yards on average.
Answer:
5/6 miles
Step-by-step explanation:
Matthews travels 2.5 miles → this is 3 times the distance that Jennifer travels
Jennifer travels 2.5 / 3 miles = 5/6 miles
because,
2.5 = 2 and 1/2 = 5/2
(5/2) ÷ 3 = (5/2) *(1/3) = 5*1/ 2*3 = 5/6
Answer:
the answer I got was 82,944
Step-by-step explanation:
12×12=24×12=288×24=6,912×12=82,844
Answer:
60
Step-by-step explanation:
Because the diameter of this circle is 20 and the formula for the circumference (perimeter) of a circle is pi * the diameter, or πd, which, if π is 3, can be computed as 60.
A takeaway from this problem is that you should memorize basic equations like the circumference/area of a circle.