Solve the equation. Express radicals in simplest form.x2 + 4 = 8
A. {-1, 1}
B. {-2, 2}
C. {4}
D. {2}
Answer: B
Mathematics
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Provide an appropriate response.Write a system of equations that would be more easily solved using the substitution method than the elimination method. Explain why substitution would be easier than elimination.
What will be an ideal response?
Mathematics
Find the inverse of the function.f(x) = x3 + 7
A. f-1(x) = 
B. Not a one-to-one function
C. f-1(x) = 
D. f-1(x) = 
- 7
Mathematics
Write the number as a mixed numeral. Do not simplify.74.206
A. 
B. 
C. 
D. 
Mathematics
Find the area of the geometric figure.
A. 132 sq km B. 907.5 sq km C. 726 sq km D. 1452 sq km
Mathematics