Skip to content
free
K
1
2
practice
Home
Math
English
Science
Social Studies
Contact
Language
English
Español
Sign In
/
College Test Prep
/
Praxis Core
/
Select Problems with a Target Mathematical Structure
Grade Level
Praxis Core
5165.279 Select Problems with a Target Mathematical Structure
0%
Skill Level
🟢 Easy
00:00
Progress to Next Level
25% to Medium
Easy
Medium
Hard
Mastery
100%
A teacher wants a task that uses the linearity of summation notation. Which task best fits?
A
Sort the terms a_i from smallest to largest only.
B
Replace every summation symbol with multiplication by 3 regardless of the expression.
C
Evaluate one term 3a_1 + 2 only.
D
Use the identity sum of (3a_i + 2) from i = 1 to n equals 3 times the sum of a_i plus 2n.
Submit Answer
