Factor out the greatest common factor.5t2 - 20t - 10
A. 5t(t2 - 4t - 2)
B. 5(t2 - 20t - 10)
C. 5(t2 - 15t - 5)
D. 5(t2 - 4t - 2)
Answer: D
Mathematics
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Perform the indicated operations.5(4x + 4y)(4x - 7y)
A. 80x2 - 60xy - 4y B. 40x2 - 60xy - 140y2 C. 80x2 - 60xy - 140y2 D. 40x2 - 285xy - 140y2
Mathematics
Rewrite the expression as the sum and/or difference of logarithms, without using exponents. Simplify if possible.log8
A. log8
+ log87
B. log87 - log8
C. log4
- log47
D. 
log813 - log87
Mathematics
Write the number without exponents.5.201 × 10-5
A. 0.000005201 B. 0.0005201 C. -520,100 D. 0.00005201
Mathematics
A formula is given along with the values of all but one of the variables in the formula. Find the value of the variable not given.A = 
bh; b = 6, h = 18
A. 54 B. 24.5 C. 24 D. 108
Mathematics