If neither a nor b are equal to zero, which answer most accurately describes the product of (a + bi) (a - bi) ?

In a survey of 100 Enormous State University students, 25 enjoyed classical music, 20 enjoyed rock music, and 25 enjoyed house music. Five of the students enjoyed both classical and rock.

A baby gains 11 pounds in its firat year of life. The baby gained 4 pounds during the first four months and second four months. How much did the baby gain in the last four months? 3 1/4 pounds 3 1/2 pounds 4 pounds 5 pounds

In a city school, 65% of students have green eyes, 25% have red hair, and 15% have green eyes and red hair.

50 centimeters to meters 6.3 meters to centimeters

Find the product of 6/7•5/7

Why can't I find science I'm having trouble with science

Give me a multistep problem that has at least two amounts of elapsed time a problem that require finding a starting time or ending time

Simplified form for x-1+4+7x-3

4. Solve using elimination. 4x - 3y = 9 3x + 2y = 11 Download pdf

What is the radius of a 12 feet circle