Multiply mentally.(-7 + 3x)(7 + 3x)
A. 9x2 + 42x - 49
B. 9x2 - 42x - 49
C. 9x2 - 49
D. x2 - 49
Answer: C
Mathematics
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The temperature T, in degrees Fahrenheit, of a roast t minutes after it is placed in the oven is given by
?
.
?
When does the temperature of the roast reach 142 degrees?
?
A. After 131.53 minutes B. After 86.75 minutes C. After 129.62 minutes D. After 90.34 minutes
Mathematics
2
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Explain the procedure used to determine the unearned interest using the Rule of 78.
What will be an ideal response?
Mathematics
Write a percent for both the shaded and unshaded parts of the figure.
A. 7% shaded; 93% unshaded B. 7% shaded; 3% unshaded C. 70% shaded; 30% unshaded D. 60% shaded; 40% unshaded
Mathematics