Find the domain of the function.f(x) = x2 + 2
A. {x|x > -2}
B. all real numbers
C. {x|x ? -2}
D. {x|x ? -2}
Answer: B
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Provide an appropriate response.The studs of an outside wall are 
in. thick. The inside wallboard is 
in. thick and the outside covering is 
in. thick. What is the total thickness of the wall?
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Find the logarithm. Give an approximation to four decimal places.log 2471
A. 7.8124 B. 3.3911 C. 3.3929 D. 3.3946
Solve the problem.Levi borrowed $6944 at 4% simple interest for 6 months. How much will the interest amount to? What is the total amount that Levi will have to pay back at the end of 6 months? Round answers to the nearest cent if necessary.
A. $140.05; $7084.05 B. $162.03; $7106.03 C. $115.73; $7059.73 D. $138.88; $7082.88
Solve the problem.A searchlight is shaped like a parabola. If the light source is located 2 feet from the base along the axis of symmetry and the opening is 14 feet across, how deep should the searchlight be?
A. 24.5 ft B. 0.1 ft C. 12.3 ft D. 6.1 ft