Solve.The speed limit is 80 miles per hour. Convert this to kilometers per hour. Round answer to the nearest hundredth, if necessary.
A. 128.8 km per hr
B. 203.2 km per hr
C. 49.6 km per hr
D. 24 km per hr
Answer: A
Mathematics
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Rewrite the polynomial in descending order.Rewrite a3 + 4a2b + 2b3 - 3ab2 in descending powers of b.
A. 2b3 + 3ab2 + 4a2b + a3 B. a3 + 4a2b - 3ab2 + 2b3 C. 2b3 + 4a2b - 3ab2 + a3 D. 2b3 - 3ab2 + 4a2b + a3
Mathematics
Find the volume.Find the volume of the right trapezoidal pyramid. Round to the nearest hundredth.
A. 658.56 yd3 B. 329.28 yd3 C. 1975.68 yd3 D. 987.84 yd3
Mathematics
Divide and simplify. Write the answer as a mixed number if possible.5
÷ 3
A. 2
B. 1
C. 1
D. 1
Mathematics
Write the linear system as a matrix equation in the form AX = B, where A is the coefficient matrix and B is the constant matrix. 9x - 2y= 51 6y= 36
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics