exam Maths Puzzle Numerical Ability

Verify that (sec θ/sin θ)(cot θ/csc θ)= csc θ is an identity.

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exam Other Question

What is the maximum value of q(x) = -2(x + 4)2 + 23? Franco works at an electronics store. He earns $7.25 per hour plus a 5% commission on weekly sales. If he works for 40 hours and sells $14,000 worth of merchandise, how much will he earn that week?

A. $700
B. $900
C. $1250
D. $1400