Diane, I'm sure you were given formulas for these quantities. Here they are again (π is the Greek letter pi): C (circle) = 2 π r A (circle) = π r2 V (cylinder) = At = π r2 t Just plug in your values and round appropriately.

areas, circumferences and volume (answer)

Diane, I'm sure you were given formulas for these quantities. Here they are again (π is the Greek letter pi): C (circle) = 2 π r A (circle) = π r2 V (cylinder) = At = π r2 t Just plug in your values and round appropriately.

incomplete records for a period (answer)

This rate is the ratio of the number of incomplete records and the number of discharges for the period. rate = # incomplete / # discharges = 234 / 1051

Sin(x)=2sin(x)cos(x) (answer)

This looks like it should be a double-angle rule: sin(2x) = 2 sin x cos x The double-angle rules derive from the sum formulas sin (a + b) = sin a cos b + cos a sin b and cos (a + b) = cos a cos b - sin a sin b by setting b = a sin...

delinquent record (answer)

Delinquent record rate = # delinquent records / total discharges = 561 / (3 * 1700) ...

This is an exercise in understanding, so it isn't truly a math problem. In my mind, the obvious fill-in is "panic". Don't panic when you see the term "function". I would extend that to Don't panic over any concept in math. Panicking doesn't help you understand...

Can you help me? (answer)

Factoring polynomials is a matter of recognizing patterns, that is, common factors, and that takes practice, practice, practice. Here are two ways to factor this polynomial: f(x) = x3 + 3x2 – x – 3 = (x + 3) x2 – 1 * (x + 3) ...

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