Solve.Shelly can cut a lawn with a riding mower in 4 hours less time than it takes William to cut the lawn with a push mower. If they can cut the lawn in 4 hours working together find how long to the nearest tenth of an hour it takes for William to cut the lawn alone.
A. 10.6 hr
B. 6.5 hr
C. 10.5 hr
D. 6.6 hr
Answer: C
Mathematics
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Express in terms of sums and differences of logarithms.log8
A. log819 + 
log8r - log8s
B. log8(19
) - log8s
C. log8s - log819 - 
log8r
D. log819 ? 
log8r ÷ log8s
Mathematics
Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.5x2 - 30x + 40
A. 5(x - 2)(x - 4) B. (x - 2)(5x - 20) C. 5(x - 8)(x + 1) D. Prime
Mathematics
Referring to triangle ABC, find the area of the triangle.
?
?
Round to three significant digits.
?
A. 2,080 km2 B. 2,050 km2 C. 2,030 km2 D. 2,060 km2 E. 2,090 km2
Mathematics
Solve using the quadratic formula. If the equation has no real solutions, write "no real-number solutions."x2 - x = 30
A. -5, -6 B. 5, 6 C. -5, 6 D. no real-number solutions
Mathematics