Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. Does not exist
Answer: B
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Find the area of the triangle whose sides have lengths 13 cm, 14 cm, and 15 cm.
What will be an ideal response?
The temperature C, in degrees, of a cup of coffee t minutes after it is poured is given by
.
A: What was the temperature of the coffee when it was poured?B. When did the temperature reach 154.69 degrees? Round your answer to the nearest minute.C: What is the temperature of the room in which the coffee sits?
What will be an ideal response?
Use a factor pair table to find all of the factor pairs of each number.63
A. 1 and 63; 3 and 21; 7 and 9 B. 1 and 63; 2 and 36; 3 and 21; 7 and 9 C. 3 and 63; 5 and 21; 7 and 11; 9 and 9 D. 1 and 63; 3 and 21; 5 and 11; 7 and 9
Divide using synthetic division.
A. 9x2 + 18x + 21
B. 9x2 + 18x + 21 - 
C. 9x2 - 18x + 21
D. 9x2 + 6x + 5 + 