Answer:
120
Step-by-step explanation:
all complementary angles should add up to 180 degrees
1x78=78
2x39=78
6x13=78
Hope that helped:)
I think the correct answer from the choices listed above would be the third option. The statement that best describes the gas in a scuba tank would be that <span>the gas is compressed. The gas inside is exposed in a very high pressure which compresses it to liquid.</span>
Step-by-step explanation:
Let x = number of games that Alex played
The total money that he spent C is given by
If he spent $45, then we can write
Solving for x, we get
This means that Alex played 15 games.
Mean, x_bar = 1518
Standard deviation, sigma = 325
Range required: 1550 ≤ X ≤ 1575
Z = (X - x_bar)/sigma
Z1 = (1550-1518)/325 ≈ 0.1
Z2 = (1575-1518)/325 ≈ 0.18
From Z tables,
P(Z1) = 0.5398
P(Z2) = 0.5714
P(1550≤X≤1575) = P(Z2) - P(Z1) = 0.5714 - 0.5398 = 0.0316
The correct answer is C.
