Multiply.(-0.7x2)(-0.5x7)
A. 0.35x14
B. 0.35x9
C. -0.35x9
D. -0.35x14
Answer: B
Mathematics
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Solve the system of equations.5x + 2y + z = 64x - 5y - z = 92x + y + 5z = 25
A. {(1, 5, -2)} B. ? C. {(5, -2, 1)} D. {(1, -2, 5)}
Mathematics
If n is any natural number, find the number which is divisible by 5. ?
A. 
B. ?
C. ?
D. ?
E. none of these
Mathematics
Establish the identity.tan ? ? csc ? = sec ?
What will be an ideal response?
Mathematics
Solve the problem. Round your answer to two decimal places if necessary.What is 170% of 2,530?
A. 430,100 B. 43,010 C. 430 D. 4,301
Mathematics