What is a HR diagram?

a diagram showing the layers of a star

a diagram showing where stars can be found

a graph used to study stars

a graph of a stars changing shape

The weight, W, in lbs, of a child is a function of its age, a, in years, so W = f (a). (a) Do you expect f ′ (a) to be positive or negative? Why? (b) What does f (8) = 45 tell you? Give units for the numbers 8 and 45.

Factor: 4x^2-12x+9=0

List all the factors of 73

Explain how the model shows 4 (5+*)

Daniel's Print Ship purchaser a new printer for 35,000. Each year it depreciates at a rate of 5%. How much will the printer be worth in 8 years.

X (x-3) = 28 use factoring to solve the polynomial equation

An equation and the steps to solve it are shown below: 3x - one over two (8x - 2) = 4 Step 1: 3x - 4x + 1 = 4 Step 2: x + 1 = 4 Step 3: x + 1 - 1 = 4 - 1 Step 4: x = 3 Which step was the error made and why? A.

What is 39 percent of 120?

A car takes 55.3 seconds to travel 1 mile. How long does it take the car to travel 5.8 miles?

What are the domain and range of the graphed function? 2 4 6 8 10 10 8 6 4 2 7 5 3 1 9 1 3 5 7 9 y x