math
So does this polynomial, when graphed, intersect the x-axis or it just comes close?
math
how many real roots does the polynomial 2x^5+8x-7 have
statistics
Thanks for the guidance. Does it make sense that I would get 1? 1. z = (x - μ) / σ z = (84-100)/8 z = -16/8 z = -2 and z = (116-100)/8 z = 16/8 z = 2 area = .0228+.9772 Area = 1
statistics
The mean of a normal probability distribution is 100 and the standard deviation is 8. About what percent of the observations lie between 84 and 116?
Discrete Mathematics
Mathematical sequences can be used to model real life applications. Suppose you want to construct a movie theater in your town. The number of seats in each row can be modeled by the formula C_n = 16 + 4n, when n refers to the nth row, and you need 50 rows of seats. (a) Write t...
math
for #1, where did you get the negative for - ( x+ 4 )
math
I tried solving these problems and get stuck . Can you please tell me what am I suppose to do next or did I do them all wrong 1. (x+5)^2 = (x+4)^2 √(x+5)^2 = √(x+4)^2 x+5 = x+4 ? 2. (4x+7)^2 = 144 √(4x+7)^2 = √144 4x+7 = 12 ? 3. (x-5)^2 = 30 √(x-5...
Physics
You drop a rock off a bridge. 4. (2 pts) How fast is it going after 2.0 s?
chem
i think it stands for alpha. so would i just do the U + alpha -> neutron +Pu?
chem
Write balanced equations for the following reactions. (Use the lowest possible coefficients. Omit states-of-matter in your answer. 238 U 92 (á, n) 241 Pu 94 sorry teh formating is off
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