Petunia rides her bike.
100,19
9
miles from home
v
1
2
3
4
5
hours
6
7
8
9
11
what does the initial value mean?
petunia is riding toward her home.
petunia starts 10 miles from home.
petunia rides at 5 miles per hour.
it takes petunia 2 hours to get home.

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?