Simplify the expression.(7)(-6)
A. -42
B. -142
C. -49
D. -420
Answer: A
Mathematics
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The percent of a certain brand of computer chips that will fail after t years of use is estimated to be 
.
?
What percent of this brand of computer chips are expected to be usable after 6 years? Round your answer to one decimal place.
?
__________%
Fill in the blank(s) with the appropriate word(s).
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Find f(x) at the indicated value of x.f(x) = -7x + 5, x = -5
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, ? < ? < 
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.
A. 
B. - 
C. 
D. - 
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