Solve the problem.At the end of a woman's pregnancy, she had gained 
to weigh 
. Write an equation to describe the change in weight.
A. x - 23 = 154
B. x + 23 = 154
C. x + 154 = 23
D. 23 - x = 154
Answer: B
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The equation of an ellipse is given. Put the equation in standard form and sketch the ellipse.9x2 + 49y2 = 441
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Using a calculator, evaluate to four decimal places.log 20.93
A. 3.0412 B. 3.5412 C. 1.3208 D. 0.8208
Solve the problem.Marty's Tee Shirt & Jacket Company is to produce a new line of jackets with an embroidery of a Great Pyrenees dog on the front. There are fixed costs of $630 to set up for production, and variable costs of $28 per jacket. Write an equation that can be used to determine the total cost, C(x), encountered by Marty's Company in producing x jackets.
A. C(x) = 630 - 28x B. C(x) = 630x + 28 C. C(x) = 630 + 28x D. C(x) = (630 + 28) x
Find the common logarithm to four decimal places.log 30
A. 0.9771 B. 1.4771 C. 3.9012 D. 3.4012