Solve.
x2 - x + 
= 0
A. 
, 
B. 
C. 
, 
D. 
, 
Answer: D
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Solve the problem.Le Boulangerie, a bakery, sells four main items: sweet rolls, bread, cakes, and pies. The amount of each ingredient (in cups, except for eggs) required for these items is given by matrix A. Eggs Flour Sugar Shortening Milk
= A
The cost (in cents) for each ingredient when purchased in large lots or small lots is given in matrix B. cost
Large Lot Small Lot
= B
Suppose a day's orders consist of 20 dozen sweet rolls, 200 loaves of bread, 50 cakes, and 60 pies. Use matrix multiplication to find a matrix giving the costs under the two purchase options to fill the day's orders.
A. 
B. These matrices cannot be multiplied.
C. 
D. 
Find the product.(0.7 + 2a)(0.5 - 6a)
A. 0.35 + 3.2a - 12a2 B. 3.5 - 3.2a - 12a2 C. 0.35 - 3.2a - 12a2 D. 0.35 - 3.2a - 0.12a2
Find the value of the expression using the given values.
?x = 15, y = 20
A. 18 B. 13 C. 25 D. 24
Solve. Round to the nearest tenth.Find the distance between the centers of the holes drilled in a rectangular metal plate with the dimensions labeled in the sketch.
A. 8.5 cm B. 3.3 cm C. 7.4 cm D. 73 cm