Solve the system by graphing on a calculator. Round to the nearest hundredth if necessary.x2 + y2 = 7y = 
A. {(-2.29, -1.32), (2.29, 1.32)}
B. {(-1.76, -1.98), (2.13, -1.57)}
C. {(-2.13, -1.57), (1.76, -1.98)}
D. {(-2.13, 1.57), (1.76, 1.98)}
Answer: D
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If a married couple invests $1,800 in a 1-year certificate of deposit at 5% annual interest, compounded daily, how much interest will be earned during the year? ? Please round the answer to the nearest hundredth. Enter your answer without the units.
Fill in the blank(s) with the appropriate word(s).
Determine the number that should be added to complete the square of the expression. Then factor the expression.x2 + 
x
A. 36; (x +6)2
B. 
; 
2
C. 
; 
2
D. 
; 
2
Find the amount that results from the investment.$1,000 invested at 9% compounded annually after a period of 4 years
A. $1538.62 B. $1411.58 C. $411.58 D. $1295.03
Find the equation of the least squares line.The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test. 
A. y = -67.3 + 1.07x B. y = 67.3 + 1.07x C. y = 33.7 + 2.14x D. y = 33.7 - 2.14x