Solve the equation. Identify the equation as an identity, an inconsistent equation, or a conditional equation.4(28t + 20) = 16(2t - 10)
A. Conditional, {-3}
B. Conditional, {1}
C. Inconsistent, ?
D. Identity, {all real numbers}
Answer: A
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Find ?f.f(x, y, z) = ex3 + y3 + z5
A. F = 3x2ex3 + y3 + z5i + 3y2ex3 + y3 + z5j + 5z4ex3 + y3 + z5k B. F = 3x2ex3i + 3y2ey3j + 5z4e z5k C. F = x2ex3 + y3 + z5i + y2ex3 + y3 + z5j + z4ex3 + y3 + z5k D. F = x3ex3 + y3 + z5i + y3ex3 + y3 + z5j + z5ex3 + y3 + z5k
Factor completely. If the polynomial cannot be factored, say it is prime.9x2 - 39x - 30
A. 3(3x + 2)(x - 5) B. (9x + 6)(x - 5) C. prime D. 3(3x - 2)(x + 5)
Find the values of the variables for which the statement is true, if possible.
= 
A. m = 10; n = -6; x = 8 B. m = -6; n = 10; x = 0 C. m = 6; n = -2; x = 8 D. m = -10; n = +6; x = -8
Evaluate the logarithm without the use of a calculator.log5 
A. 5 B. -5 C. 2 D. -2