Simplify the expression by combining like terms.2.8x + 9 + 2x - 3
A. 2.8x + 2x + 9 - 3
B. 10.8
C. 4.8x + 6
D. 5.6x - 27
Answer: C
You might also like to view...
Perform the indicated operation.14 lb 1 oz - 8 lb 14 oz
A. 5 lb 3 oz B. 6 lb 12 oz C. 22 lb 3 oz D. 6 lb 3 oz
Provide an appropriate response.Select a fraction that is proportional to 
.
A. 
B. 
C. 
D. 
Provide an appropriate response.Tina was asked to solve the following problem: "The product of two consecutive numbers is 90. Find the numbers." Tina's solution is given below. Do you agree with her conclusion? If not, why not? x(x + 1) = 90x2 + x = 90x2 + x - 90 = 0(x + 10)(x - 9) = 0x = -10 or x = 9The pair of numbers is 9 and 10
What will be an ideal response?
Approximate the area under the curve and above the x-axis using n rectangles. Let the height of each rectangle be given by the value of the function at the right side of the rectangle.f(x) = 2x2 + x + 3 from x = -2 to x = 1; n = 6
A. 9 B. 7 C. 13 D. 11