Collect like terms.5a2 + 2a + 7a2 + 3a
A. 5a2 + 5a + 7
B. 5a2
C. 12a2 + 2a + 3
D. 12a2 + 5a
Answer: D
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Find all the roots of the function. Use preliminary analysis and graphing to determine good initial approximations. Round to six decimal places.f(x) = cos 2x - 
+ 3
A. x ? -2.579947, 2.801947 B. x ? -2.690947, 2.690947 C. x ? -2.801947, 2.579947 D. x ? -4.190947, 1.190947
Refer to the weighted voting system 
and the Banzhaf definition of power. (The four players are P1, P2, P3 and P4.)The Banzhaf power distribution of the weighted voting system is
A. P1: 
; P2: 
; P3: 
; P4: 
.
B. P1: 
; P2: 
; P3: 
; P4: 
.
C. P1: 
; P2: 
; P3: 
; P4: 
.
D. P1: 
; P2: 
; P3: 
; P4: 
.
E. none of these
Solve the problem.A computer system cost $11,800 and has an estimated life of 8 years and a scrap value of $944. Find the total depreciation at the end of 5 years using the straight-line method. Round to nearest dollar.
A. $10,443 B. $5015 C. $6785 D. $4425
Verify the identity.tan ? ? csc ? = sec ?
What will be an ideal response?