First, use front end rounding to estimate each answer. Then find the exact answer.
+ 272
What will be an ideal response?
Estimate: -900 + 300 = -600
Exact: 
+ 272 = -672
You might also like to view...
In a school survey, students showed these preferences for instructional materials. Answer the question.
How many degrees are in the central angle for the "Lecture" sector?
A. 64.8° B. 18° C. 20° D. 32.4°
Write the system in the form 
Then solve the linear system by computing 
with a calculator. Round numbers to the nearest tenth, as necessary.1.7x + 15.4y - 4.4z = 2.55.3x - 7.0y - 1.1z = -3.03.7x + 6.2y - 3.4z = 10.6
A. (151.3, 67.1, 294.9) B. (-248.1, -110.1, -483.6) C. (-60.5, -26.9, -118.0) D. (-90.8, -40.3, -176.9)
Solve the problem.The mathematical model 
represents the cost in dollars a company has in producing x items during a month. Based on this, how much does it cost to produce 
? Interpret the question and answer using function notation.
A. $320,000; f(320,000) = 800 B. $360,000; f(800) = 360,000 C. $360,000; f(360,000) = 800 D. $320,000; f(800) = 320,000
Verify the identity.sin 
= 
(cos ? + sin ?)
What will be an ideal response?