Decide whether the problem is an equation or an expression.7(2x + 6) - 2(4x - 7)
A. Expression
B. Equation
Answer: A
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Find the y-intercepts for the parabola whose equation is given. If the y-intercepts are irrational, round your answers to the nearest tenth.y = x2 + 4x
A. y-intercept (0, 0) B. No y-intercept C. y-intercept (0, 4) D. y-intercepts (0, 0) and (-4, 0)
Provide an appropriate response.How many significant digits are there in 8.0?
Fill in the blank(s) with the appropriate word(s).
Solve the problem.From a 32-inch by 32-inch piece of metal, squares are cut out of the four corners so that the sides can then be folded up to make a box. Let x represent the length of the sides of the squares, in inches, that are cut out. Express the volume of the box as a function of x.
A. V(x) = 2x3 - 96x2 + 32x B. V(x) = 2x3 - 96x2 C. V(x) = 4x3 - 128x2 D. V(x) = 4x3 - 128x2 + 1024x
Find a matrix A and a column matrix B that describe the following tables involving credits and tuition costs. Find the matrix product AB, and interpret the significance of the entries of this product.
?
A.
AB = 
The number of credits for Student 1 is 12, the number of credits for Student 2 is 17, and the number of credits for Student 3 is 15.
B.
AB = 
The number of credits for Student 1 is 17, the number of credits for Student 2 is 15, and the number of credits for Student 3 is 12.
C.
AB =
Tuition for Student 1 is $800, tuition for Student 2 is $650, and tuition for Student 3 is $860.
D.
AB = 
Tuition for Student 1 is $900, tuition for Student 2 is $800, and tuition for Student 3 is $610.