Evaluating Expressions and Heart Rate
Interactive Video
•
Mathematics
•
7th - 10th Grade
•
Practice Problem
•
Hard
+1
Standards-aligned
Amelia Wright
FREE Resource
Standards-aligned
Read more
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to use parentheses when substituting negative values in algebraic expressions?
To ensure the correct order of operations
To make the expression look neat
To avoid confusion with positive values
To ensure the base remains negative
Tags
CCSS.6.EE.A.2C
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of evaluating a^2 - b^2 when a = -5 and b = -3?
16
25
9
0
Tags
CCSS.6.EE.A.2C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When evaluating a^2 - b^2, what is the value of b^2 if b = -3?
-9
9
-3
3
Tags
CCSS.6.EE.A.2C
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the expression -a^2 - (b - c), what is the first step according to the order of operations?
Add the constants
Multiply the terms
Evaluate the expression inside the parentheses
Simplify the exponent
Tags
CCSS.6.EE.A.2C
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of evaluating -a^2 - (b - c) when a = -5, b = 4, and c = -2?
25
31
-31
-25
Tags
CCSS.7.NS.A.1B
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the equivalent expression for 4 - (-2)?
-4 - 2
4 - 2
-4 + 2
4 + 2
Tags
CCSS.7.EE.B.4A
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula used to calculate the recommended maximum heart rate?
m = 0.8 * (a - 220)
m = 220 - 0.8 * a
m = a - 0.8 * 220
m = 0.8 * (220 - a)
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports
Continue with Google
Continue with Email
Continue with Classlink
Continue with Clever
or continue with
Microsoft
%20(1).png)
Apple
Others
Already have an account?
