Simplify, where possible.5(x + 9)
A. x + 45
B. 5x + 45
C. 45x
D. 5x + 9
Answer: B
Mathematics
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Find a formula for the nth partial sum of the series and use it to find the series' sum if the series converges.
+ 
+ 
+ ... + 
+ ...
A. 
; 
B. 
; 
C. 
; 
D. 
; 
Mathematics
Use the graph below to answer the question.
True or false? DH is a bridge.
A. true B. false
Mathematics
Name the property that justifies the statement. All variables represent real numbers.
+ 
= 0
A. Identity property of addition B. Inverse property of addition C. Associative property of addition D. Commutative property of addition
Mathematics
Solve the problem.A spring has a natural length of 
. A force of 
stretches the spring to 38 in. How far beyond its natural length will a 
force stretch the spring?
A. 5 in B. 2.5 in C. 40 in D. 4 in
Mathematics