Provide an appropriate response.Solve the following system of equations using the substitution method: 2a + b = -1 a - 3b = 17
Fill in the blank(s) with the appropriate word(s).
(2, -5)
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Factor out a factor with a negative coefficient.-15u4 - 10u3 + 25u
A. -5u(3u3 - 2u2 + 5) B. -5u(3u3 + 2u2 - 5) C. 5u(-3u3 + 2u2 + 5) D. None of these
Find the arc length. Leave your answer in terms of pi.An arc with central angle 354° and radius 7 cm
A. 0.04? cm B. 13.77? cm C. 1.97? cm D. 27.53? cm
Graph the line through the given point with the given slope.(-4, -4), m = 2
A. 
B. 
C. 
D. 
Solve the problem.Helen Weller invested $10,000 in an account that pays 10% simple interest. How much additional money must be invested in an account that pays 13% simple interest so that the total interest is equal to the interest on the two investments at the rate of 11%?
A. $5000 B. $7000 C. $10,000 D. $6000