an2na3stephalilts an2na3stephalilts

12-12-2016
Mathematics

contestada

The area of a trapezoid is given by the formula A =1/2 (b 1 + b 2)h, where base b 1 is parallel to base b 2 and h is the height. Solve the formula for b 2. Show your work.

Respuesta :

JcAlmighty JcAlmighty

14-12-2016

The answer is b2 = 2A/h - b1

A = 1/2(b1 + b2)h

Multiply both sides by 2:
2 * A = 2 * 1/2(b1 + b2)h
2A = (b1 + b2)h

Divide both sides by h:
2A/h = (b1 + b2)h/h
2A/h = b1 + b2

Subtract b1 from both sides:
2A/h - b1 = b1 + b2 - b1
2A/h - b1 = b2

Answer Link

Otras preguntas

kyle calculates that he spent 15% of a school day in science class.if he spent 75 minutes in science class how many will kyle spend in school?

how can you find x and y in a problem EX: if a bag of pretzels cost x dollars and a drink cost y dollars, what expression could you use to write how much you s

What is bad about steroids ?

In the story "Rip Van Winkle," how does Washington Irving use ironic elements to describe Rip's relationship with Dame Van Winkle? Support your answer with exam

Parker and Makayla work at a furniture store. Parker is paid $230 per week plus 1.5% of his total sales in dollars, x x, which can be represented by g ( x ) =

I DO NOT UNDERSTAND THIS QUESTION

An observer from the top of a lighthouse 370 feet above sea level sees two sailboats in the water. The angles of depression to the boats are 12 degrees and 10 d

Is the following chemical reaction balanced?2H2O2+H2O+02yesno

Witch list is in descending order

How is gravity affected when the distance between objects decreases?