x² + (y– 3)2 = 49 y=b If the equations above are graphed in the xy-plane, they form a circle and a line. If the line is tangent to the circle, which of the following could be a value of b? A) -7 В) —4 С) 3 D) 4

Q: a) Consider the following equations, 0.7x + 2y 1.1x+y = 7 =6 i) Rearrange both equations into the…

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A:

Q: + 4y2 -4x2 = 4 9x2 + 4y2 + 2z2 = 36 * = 22 - y? %3D 9y? + z? = 16 z = -4x2 - y2 x2 + 4z2 = y? %3D

A: (1).   The graph of equation  z2 + 4y2 - 4x2 = 4  is:   Hence Option (C).  is correct match.

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Q: 18. Which two lines are parallel? Hint: write all equations in slope-intercept form I. 5y = 2x – 5…

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Q: D) 4r - y-5

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Q: 9. to (x- 20)° 70°

A:

Q: 6. a. Sketch the circle x + y = 25 and the line y = 2x – 5. b. Solve the two equations…

A: The graph of x2+y2=25  &  y=2x-5 is,

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A: