What is the formula given in the video for calculating the area of a trapezoid?

Solving Equations and Isolating Variables

Interactive Video
•
Mathematics
•
7th - 10th Grade
•
Hard

Olivia Brooks
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A = 1/2 x B1 x B2 x H
A = 1/2 x (B1 + B2) x H
A = B1 + B2 + H
A = B1 x B2 x H
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to perform the same operation on both sides of an equation?
To solve for X
To simplify the equation
To maintain equality
To eliminate variables
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step suggested to simplify the equation for B1?
Add B2 to both sides
Multiply both sides by 2
Subtract B2 from both sides
Divide both sides by H
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What operation is used to eliminate the fraction in the equation for B1?
Addition
Subtraction
Division
Multiplication
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After multiplying both sides by 2, what is the next step to isolate B1?
Add H to both sides
Divide both sides by H
Multiply both sides by H
Subtract B2 from both sides
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the equation 2X - 3Y = 8, what is the first step to solve for Y?
Add 3Y to both sides
Subtract 2X from both sides
Divide both sides by 2
Multiply both sides by 3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of dividing both sides of the equation -3Y = -2X + 8 by -3?
Y = -2X + 8
Y = 2/3X - 8/3
Y = -2/3X + 8/3
Y = 2X - 8
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