Write the number in standard form.The speed of light is 1.86 × 105 miles per hour.
A. 186,000
B. 18,600,000
C. 1,860,000
D. 0.0000186
Answer: A
Mathematics
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Let (m × n) denote a matrix of size m × n. Find the size of the following product, or state that the product is not defined.(2 × 3)(3 × 2)
A. not defined B. 2 × 3 C. 3 × 3 D. 2 × 2
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Find the rate as a ratio of distance to time. Round to the nearest hundredth where appropriate.270 m, 45 sec
A. 6 
B. 51 
C. 45 
D. 270 
Mathematics
Verify the identity.cos2 
= 
What will be an ideal response?
Mathematics
Solve the system of equations by the substitution method.
A. (1, 9) B. (2, 8) C. (-2, 9) D. no solution
Mathematics