Answer:
Complementary angles are usually defined for angles between 0 and 90 degrees. You could technically say the complement is a -30 degree angle, because the polar coordinate system allows for negative angle measures.
Step-by-step explanation:
Answer:
12.75 cubic feet
Step-by-step explanation:
Step 1: Convert all measurements to feet since the answer is asking for feet.
The third measurement is in inches, so this is the one that needs to be converted. Doing so give us the dimensions...
8(1/2) x 3 x (1/2) {6 inches is one-half of a foot, 12 inches to a foot}
Calculating volume of a three dimensional space is done by multiplying the three dimensions together. If you have a calculator, convert the mixed fractions to decimals, then multiply the 3 numbers together...
8.5 x 3 x 0.5 = 12.75
If you can't use a calculator, convert the mixed fractions to improper fractions and multipy...
17/2 x 3 x 1/2
17/2 x 3/1 x 1/2 (3 is 3/1 written as a fraction)
51/4 (multiply numerators together, multiply denominators
together)
51/4 = 12.75
I think the answer is B. Angle 2 and 7
