Using the addition/subtraction method, find the value of x and y to satisfy the following equations: 2x + 4y = 8; 2x + 2y = 2
a. x = -2 y = -3
b. x = -3 y = -2
c. x = 3 y = 2
d. x = -2 y = 3
e. x = 2 y = -3
d. x = -2 y = 3
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Give an appropriate answer.Explain the difference between a cluster sample and a stratified sample.
What will be an ideal response?
Factor completely. If the polynomial is prime, state so.x3 - y6
A. (x - y2)(x2 - x y2 + y2) B. (x - y2)(x2 + x y2 + y4) C. (x + y2)(x2 - x y2 + y2) D. (x + y2)(x2 + x y2 + y2)
Write the algebraic expression described. Simplify if possible.Two numbers have a sum of 45. If one number is q, express the other number in terms of q.
A. 45 - 2q B. q + 45 C. q - 45 D. 45 - q
Find the linear factorization of the polynomial and find all roots of the polynomial. f(x) = 2x3 + 2x
A. f(x) = 2x(x + 1)2, roots: 0, -i B. f(x) = 2x(x + i)(x - i), roots: 0, ± i C. f(x) = 2x(x + i)2, roots: 0, -i D. f(x) = x(x + 2i)(x - i), roots: 0, i, -2i