12) If a, b and c are the roots of x' – 2 x² + 3 x – 4 = 0, find the numerical value of a’ + b' + c°. a) 4 b) 3 c) 2 d) - 2 13) Let x, y, and z be positive real numbers such that x(y + z) = 95, y(x + z) = 128 and z(x + y) = 143. Find xyz. a) 500 b) 440 c) 400 d) 330 14) A rhombus has a 60 degree angle. What is the ratio of its area to that of a circle inscribed inside it? a) 1.24 b) 1.47 c) 1.75 d) 1.55 16) A sphere has a diameter of 30 cm. The altitude of the first segment is 6 cm. What is the ratio of the area of zone of the second segment to that of the first ? a) 1.5:1 b) 6:1 c) 2:1 d) 4 :1 17 ) In a group of five friends, the sums of the ages of each group of four of them are 124, 128, 130, 136, and 142. What is the age of the youngest? a) 22 b) 24 c) 21 d) 23

Q: Evaluate if x=4,8,3,-2 ∑x ∑x+1 ∑(x+1) 3∑x - 4

A: Given that  if x=4,8,3,-2

Q: +2 S₁² S²3²¹ y²e²dxdy = f₁² y²dy ſ² e² dx

A: Given double integration ∫12∫34y2exdxdy

Q: –2q + 20=

A: Here , we will find the value of q

Q: Evaluate x²+3x+5

A:

Q: I need to write an expression to find the perimeter

A:

Q: could you do a and b with different examples again

A:

Q: (x+α) 8x = 2 3

A:

Q: If p = "I had a bagel for breakfast" and q = "I had a sandwich for lunch," then translate ~ p→q into…

A: The given statements are  p= "I had a bagel for breakfast" and q= " I had a sandwich for lunch,"…

Q: . 8х-4у>-28 6y212х-36

A:

Q: Find in terms of x and y. xp

A:

Q: (5,19),(8,18),(10,14),(12,7) find the value of r and round to four decimals

A:

Q: The table shows the movement of a stock for 30 randomly selected trading days. "Up" means the stock…

A:

Q: a b and the final max were inncorrect

A:

Q: Let = 2 4-8 L and = 0 Then proj= CO -4 3

A:

Q: can u double check and answer this again

A:

Q: Then show the classes that you used for display

A: First make frequency table in proper format:  Classes : ( define proper range )  Calculate…