Solve the following quadratic equation using the quadratic formula. Find the exact answer. If there are no real solutions, so state.
+ x + 
= 0
A. x = -16 + 
B. x = 8 ± 
C. x = 8 + 
D. x = -8 ± 
Answer: D
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Write as a decimal.70.4%
A. 0.594 B. 0.0704 C. 7.04 D. 0.704
Solve the problem.The sales of a new product (in items per month) can be approximated by 
, where t represents the number of months after the item first becomes available. Find the number of items sold per month 3 months after the item first becomes available.
A. 575 items per month B. 4375 items per month C. 775 items per month D. 2375 items per month
Answer the question or write an explanation.Can an equation of a vertical line be written in slope-intercept form? Why or why not?
What will be an ideal response?
Use the given vectors to find the indicated expression.v = 5i - 4j - 2k, u = -4i + 3j - 2kFind v × (5u).
A. 14i - 7j - 1k B. -140i - 95j - 160k C. 70i + 90j - 5k D. -70i - 90j + 5k