Triangle DEF (not shown) is similar to triangle ABC above, where side DE corresponds to side AB, side DF corresponds to side AC , and DE = AB. What is the measure of angle DEF ?

The function  models Jack's pulse, in beats per minute (bpm), as a function of his speed, in kilometers per hour (km/h), on a stationary bicycle. Based on the model, what was Jack's pulse, in bpm, when his sped was 0 km/h?

ka + nb = 10
The given equation relates the positive numbers a, b, k and n. Which of the following correctly expresses a in terms of b, k , and n ?

What system of linear equations is represented by the lines shown?

What is the x-intercept of the graph of 8x + 6y = 24 in the xy-plane?

A college mathematics department plans to spend 1,800 buying computers and books. Each computer costs 300 and each book costs 90 . Which equation represents this situation, where x is the number of computers and y is the number of books that the department can buy?

Which of the following is equivalent to ?

For the system of equations above, what is the value of x + y?

Ohm's law is applicable to

• Ohm's law is not applicable for non ohmic conductors.
• It is only true for ohmic conductors.

A cinquain poem is a collection of __________.

Find the equation to find the total area of the given figure.

For such questions, we should know distributive property.

An ice cream store can make 280 quarts of ice cream in 7 hours. ____________ quarts of ice cream can be made in 48 hours.

We should be careful about the units. Before operation we should make sure same quantities have same unit.

Write the equivalent expressions for the following:
10(m + 10)

For such questions, we should the properties required to solve algebraic expression.

400 inch is _____% of 1600 inches.

The temperature at which a substance fuses is called its _____.

The rays which are hardest to stop are________ rays.