P ( A ) = 0.45 - probability that the land has oil,
P ( B ) = 0.8 - probability that the test predicts it
P ( A ∩ B ) = P ( A ) · P ( B ) = 0.45 · 0.8 = 0.36
Answer: The probability that the land has oil and the test predicts it is 36 %.
You would have to divide 15 by 20 (15 ÷ 20)
15 ÷ 20 = 0.75
You'd have to do the long division out on paper.
Answer:
4 hours
Step-by-step explanation:
To find the time it takes to travel the distance, divide the distance by the speed they are going.
(240 miles)/(60 miles per hour) = 4 hours
It will take them 4 hours.
Answer:
y= 1,000x+55,000
Step-by-step explanation:
55,000 is y intercept. 1,000x is slope.
Answer: 3x^2 - 16x + 15
Step-by-step explanation:
5x * 3x = 15x^2
-7 * 3x = -21x
5x * 1 = 5x
-21x + 5x = -16x
5x^2 - 17x^2 + 15x^2 = -12x^2 + 15x^2 = 3x^2
13x - 7x - 22x = 6x - 22x = -16x
- 4 + 19 = 15
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3x^2 - 16x + 15