Solve the system by graphing on a calculator. Round to the nearest hundredth if necessary.x2 - y2 = 7.82x = 2y - 5
A. {(-6.31, -5.65), (2.97, -1.01)}
B. {(-2.97, -1.01), (6.31, -5.65)}
C. {(-2.97, 1.01), (6.31, 5.65)}
D. {(-6.31, 5.65), (2.97, 1.01)}
Answer: C
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Solve the problem.A window is in the form of a rectangle surmounted by a semicircle. The rectangle is of clear glass, whereas the semicircle is of tinted glass that transmits only one-fifth as much light per unit area as clear glass does. The total perimeter is fixed. Find the proportions of the window that will admit the most light. Neglect the thickness of the frame.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Write the Hindu-Arabic numeral in expanded form.15
A. (1 × 102) + (5 × 101) B. (1 × 101) + (5 × 102) C. (1 × 101) + (5 × 100) D. (1 × 100) + (5 × 101)
Determine the reference angle for the given angle.? = 131°
A. 41° B. 51° C. 49° D. 59°
Use "intersect" on a graphing calculator to solve the equation. Round the solution to the fourth decimal place.7 - x = 2 log (x + 6)
A. 4.9233 B. 2.3735 C. 9.3735 D. 2.0767