Find the cofactor of the indicated element.a11
A. 16
B. -1
C. -11
D. -16
Answer: D
Mathematics
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In the circuit below, find IT in rectangular form if IR = 7 mA and IC = 9 mA.
a. 16 mA - j2 mA
b. 16 mA + j16 mA
c. 9 mA + j7 mA
d. 7 mA + j9 mA
e. -2 mA + j16 mA
Mathematics
Find the exact value under the given conditions.sin ? = 
, 0 < ? < 
; cos ? = 
, 0 < ? < 
Find cos (? + ?).
A. 
B. 
C. 
D. 
Mathematics
Find an equation for the ellipse described.Center at (0, 0); focus at (-2, 0); vertex at (5, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Solve the problem.Juanita arranged for a car loan of $22,400. If her monthly payments are $560, how many months will it take her to pay off the loan?
A. 400 months B. 80 months C. 40 months D. 70 months
Mathematics