Insert parentheses where needed so that the expression evaluates to the given number.8 ? 18 ÷ 3 - 9; evaluates to 39
A. 8 ? (18 ÷ 3 - 9)
B. (8 ? 18) ÷ (3 - 9)
C. 8 ? 18 ÷ (3 - 9)
D. 8 ? (18 ÷ 3) - 9
Answer: D
Mathematics
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Create a simple three-line argument for the given form. Choose your example so that it illustrates clearly whether or not the argument is valid.Affirming the hypothesis
What will be an ideal response?
Mathematics
Find the unit tangent vector of the given curve.r(t) = 
i + 
j - 5tk
A. T = 
i + 
j - 
k
B. T = 
i + 
j - 
k
C. T = 
i + 
j - 
k
D. T = 
i + 
j - 
k
Mathematics
Illustrate Goldback's conjecture for the following number.30
A. 2 ? 3 ? 5 B. 5 + 25 C. 15 + 15 D. 7 + 23
Mathematics
Solve the proportion equation.
= 
A. 
B. 2
C. 7
D. 
Mathematics