Solve.The height of a golf ball in feet after t seconds is given by 128t - 16t2. Factor this expression.
A. 16t2(8 - t)
B. 16t(8 - t)
C. 16(8t - t2)
D. 4t(32 - 4t)
Answer: B
Mathematics
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Perform the indicated operations. Write the result in the form a + bj.
A. 
B. - 
C. 
D. - 
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Find the cardinal number for the set.E = {red, yellow, blue, green}
A. n(E) = 4 B. n(E) = 19 C. n(E) = 3 D. n(E) = 1
Mathematics
Rewrite the expression as the sum and/or difference of logarithms, without using exponents. Simplify if possible.log2
A. 
log2m + 
log2n - 
log2k
B. 
log2m + 
log2n - 2 log2k
C. 5 log2m + 9 log2n - 2 log2k
D. 
log2m ? 
log2n ÷ 2 log2k
Mathematics
Compute the discriminant. Then determine the number and type of solutions for the given equation.6x2 = -8x - 7
A. 232; two unequal real solutions B. -104; two complex imaginary solutions C. 0; one real solution
Mathematics