Solve the quadratic equation by completing the square.x2 + 8x - 7 = 0
A. x = -1 ± 
B. x = -4 ± 
C. x = 4 + 
D. x = -4 ± 2
Answer: B
You might also like to view...
Find the value of the exponential expression.42
A. 3 B. 8 C. 6 D. 16
Solve.A rope is 30 ft long. How can the rope be cut in such a way that the ratio of the resulting two segments is 3 to 5?
A. 10 ft and 6 ft
B. 12 ft and 18 ft
C. 
ft and 
ft
D. 
ft and 
ft
First, use front-end rounding to round each number and estimate the answer. Then, find the exact answer.Mr. Buttimer took a plane trip for a total of 5.5 hours. He watched an in-flight movie for 1.84 hours. From the airport, he took a cab ride for 0.78 hour to the train station. Next, he took the train home for 1.98 hours. What was the total time spent traveling?
A. Estimate: 12 hours; exact: 10.1 hours B. Estimate: 11 hours; exact: 8.26 hours C. Estimate: 9 hours; exact: 8.26 hours D. Estimate: 11 hours; exact: 10.1 hours
Solve the problem.A taxpayer's property has a market value of $97,000. The rate of assessment in the area is 25%. The tax rate is $6.91 per $100 of assessed valuation. Find the property tax.
A. $670,270.00 B. $6702.70 C. $167,567.50 D. $1675.68