Write the augmented matrix for the system.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Solve the problem.Assume t is time measured in seconds and velocities have units of m/s. Find the displacement over the given interval for the velocity function v(t) = 3t2 + t + 7 on 0 ? t ? 2.
A. 13 m
B. 
m
C. 24 m
D. 7 m
Mathematics
Find the product.(-10)(-20)
A. 220 B. 210 C. 200 D. -210
Mathematics
Find the area of the triangle using Heron's formula. Round your answer to two decimal places as needed.
A. 229.64 yd2 B. 45.93 yd2 C. 32.48 yd2 D. 162.38 yd2
Mathematics
Solve for x using an equivalent exponential expression.Find the area of a rectangle that measures 2 inches by 7 feet. Give the area in square inches and in square feet.
A. 168 sq in.; 
sq ft
B. 216 sq in.; 1
sq ft
C. 1
sq in.; 168 sq ft
D. 168 sq in.; 1
sq ft
Mathematics