250+25x=150+50x
Subtract 150 from both sides
100+25x=50x
Subtract 25 from both sides
100=25x
Divide both sides by 25
X=4
It takes 4 weeks
Answer:
f = 22
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
140° is an exterior angle of the triangle, thus
4f + 1 + 51 = 140, that is
4f + 52 = 140 ( subtract 52 from both sides )
4f = 88 ( divide both sides by 4 )
f = 22
Answer:
(A) looks right
Step-by-step explanation:
I am sorry if i am wrong
Answer:
test statistic, z = −1.74
Step-by-step explanation:
given data
students n = 100
mean time x = 41.13 seconds
σ = 5
we consider µ = 42
solution
we get here The test statistic that is express as
test statistic, z = ......................1
put here value and we will get
test statistic, z = \frac{41.13-42}{\frac{5 }{\sqrt{100}}}
test statistic, z = −1.74
The answer is A 9.4 because you use the Pythagorean theorem to find the unknown side.