Multiply.(5a)4 ? 4
A. 80
B. 80a
C. 70a
D. 180a
Answer: B
Mathematics
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Solve the differential equation subject to the initial conditions.x
+ y = cos x; x > 0; x = ? when y = 1
A. y = 
, x > 0
B. y = 
, x > 0
C. y = 
, x > 0
D. y = 
, x > 0
Mathematics
Write the expression in the standard form a + bi.(6 + 8i)(4 - 6i)
A. -24 + 68i B. 72 + 4i C. -48i2 - 4i + 24 D. 72 - 4i
Mathematics
Divide and write in standard form.
A. 
- 
i
B. 
- 
i
C. - 
- 
i
D. - 
- 
i
Mathematics
Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. Does not exist
Mathematics