Answer:
D, -1
Step-by-step explanation:
when distributing the 2 to the 2x and 5 you get the same equation as the other side.
do paranthesis first, then exponent, then multiply, add then subtract from left to right
This cannot be the question. You definitely read this wrong. If p(notA)= .75 then P(not A) = .75...
If the question is find P(A), however, then the use the compliment rule
1- P(not A) = P(A)
1-.75 = .25
Combine the fractions by finding a common denominator.
1/25 or 0.04
19 has two factors: 1, 19
21 has four factors: 1, 3, 7, 21
23 has two factors: 1, 23
And so we need a number that has more than four factors, and is greater than 25.
50 is one number that fits.
Factors of 50: 1, 2, 5, 10, 25, 50
50 has six factors and is greater than 25.
Hope that helped :)
13).
(600 ft / 5 min) x (1min / 60sec)
= (600 · 1 / 5 · 60) (ft · min / min · sec)
= 2 ft/sec
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14).
(120 yd / 2 min) x (3ft / 1yd) x (1min /60 sec)
= (120 · 3 · 1 / 2 · 1 · 60) (yd · ft · min / min · yd · sec)
= 3 ft/sec
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15).
(60 mile /1 hour) x (5,280ft / 1mile) x (1hr / 3,600sec)
= (60 · 5,280 · 1 / 1 · 1 · 3,600) (mile · ft · hour / hour · mile · sec)
= 88 ft/sec .
