math
6x^2+21x-45
math word
beth is two years older than julio. gerald is twice as old as beth. debra is twice as old as gerald. the sum of their ages is 38? how old id beth a 3 b 5 c 6 d 8 why!!!
math
thanks
math
The tires of a car have 25in diameter to the nearest tenth, how many revolutions does each tire make in a mile
Teacher Math
Battery Power Problem. A certain type of thermal battery for an airplane navigation device backup power has a mean life of 300 hours with a standard deviation of 15 hours. What proportion of these batteries can be expected to have lives of 322 hours or less? Assume a normal di...
Math
The number of accidents that occur at the intersection of Pine and Linden streets between 3 p.p and 6 p.m. on Friday afternoons is 0, 1, 2, or 3, with probabilities of 0.84, 0.13, 0.02, and 0.01, respectively. Graph this probability distribution. What is the expected value for...
Math
Hope Mom baked a cake in rectangular shape 10 by 6. If she starts at the corner and put acndle every 2 inches how many candles will fit around the edge of the cake?
Math
Hope Mom baked a cake in rectangular shape 10 by 6. If she starts at the corner and put acndle every 2 inches how many candles will fit around the edge of the cake?
social studies
i need info for a project of something called boston massacre
MATH
(4/3)^-2
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