Answer:
3/5
Step-by-step explanation:
Cos C = adjacent/hypotenuse
or, Cos C = 21/35 = 3/4
Answered by GAUTHMATH
255 is the answer because 143+86=229, 229+23 is 255
Answer:
w = 4.66
Step-by-step explanation:
A . 4 = 18 - 3w
Transpose to find w
3w = 18 -4
3w = 14
w = 14 / 3
w = 4.66
Answer:
The margin of error associated with this confidence interval is 20
Step-by-step explanation:
A confidence interval has two bounds, a lower bound and an upper bound. The interval is symmetric, which means that the margin of error is the difference between these two bounds(upper - lower), divided by 2.
In this problem, we have that:
Lower bound: 520
Upper bound: 560
Determine the margin of error associated with this confidence interval.
(560 - 520)/2 = 20
The margin of error associated with this confidence interval is 20
Answer: 3x+10y=−80
Hope this helps!