Find all the real zeros of the polynomial. Use the quadratic formula if necessary.
?
What will be an ideal response?
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Solve the differential equation.2
+ 11
+ 12y = 0
A. y = c1e-4x + c2e-3x/2 B. y = c1e4x + c2e3x/2 C. y = c1e-4x + c2e3x/2 D. y = c1e-8x + c2e-3x
Solve (Round your answer to the nearest thousandth). The seven-day mean of settleable solids cannot exceed 0.15 milliliters per liter (mL/L). During the past seven days, the measurements of concentration have been 0.14, 0.11, 0.25, 0.19, 0.12, 0.12, and 0.16 mL/L. What was the mean concentration? Was it within the limit?
A. 0.158, no B. 0.156, no C. 0.144, yes D. 0.142, yes
Evaluate.
A. 9 B. 363,000 C. 3024 D. 362,880
Solve the problem.On a recent trip, Sarah's car traveled 20 mph faster on the first 110 miles than it did on the remaining 80 miles. The total time for the trip was 4 hr. Find the speed of Sarah's car on the first part of the trip.
A. 38 mph B. 58 mph C. 31 mph D. 9 mph