How to find if two lines are perpendicular?

A triangle has a perimeter of 10.2 kilometers. Two of the sides measure 3.4 kilometers and 3.4 kilometers. What is the length of the third side?

The sum of two numbers is 40 and the difference of the same two numbers is 3. Find the numbers.

Mary had 299 dolars to spend on 9 books. After buying them she had 11 dolkars. How much did each book cost.

The area of circle can be expressed by the formula A = πr2where r is a radius of circle. express radius in terms of area of circle.

Your Monthly Net Pay If your gross monthly income will be $3,750, you need to determine the net pay for your monthly budget. Your monthly net pay is Monthly gross pay $3,750 Federal withholding $238.00 Social Security $232.50 Medicare $54.

Write 5 22/25 as a decimal.

Building a is 160 feet shorter than building b. the total height of the two buildings is 1530 feet. find the height of each building.

Find the area of the figure. If you need to use pi in your computation, approximate its value as 3.14. Round to the nearest hundredth. Rectangle topped by a semicircle height is 5in base is 4 in

You need a ladder that will reach up 25 foot tall hose when place 10 feet away from the house how the tall does the ladder need to be

What is the value of this expression when c = - 4 and d = 10? 1/4 (c^ (3) + d^ (2) A. 2 B. 9 C. 21 D. 41