mpletion Status: QUESTION 12 Simplify: (6x3 - 2x2 + 9x - 8) + (4x3 - 2x + 6) 9x3-4x² +9x-2 10x3 - 2x² + 7x-2 2x3-2x² + 11x-2 10x³ - 2x2 + 7x - 14 QUESTION 13 Simplify: (-4y3 + y2-y-3) - (-2y3 - 3y + 3) -6y³+ y²-4y 3 -2y6 + y² + 2y-6 -2y³ + y² + 2y-6 -2y6-y²-2y+6

Q: Add. 4 5/8 + 4 4/7

A:

Q: Question attached

A: Given information- Sample proportion, p = 0.25 We know that, sample is best estimator of population…

Q: Which graph correctly solves the equation below? -x²+1=x²-4

A: topic - quadratic equations

Q: parts iv and v please

A: Given is a question on the probability of failure/success. Number of failed O-rings 0 1 2 3 4 5 6…

Q: Plot 3, - 12, and 9 on the number line. -10 -5 10

A: We need to draw numbers on number line.

Q: 10+7=?

A:

Q: R 7 6.4 6. a

A: For similar triangle, ratio of corresponding sides are equal

Q: Queslion lo

A:

Q: 1 Evaluate. 5P3 • 6C4 900 300 150

A: Use the formula and evaluate.

Q: Find ay Sin(x+y)=Cos X t cos y

A:

Q: ex- 12

A: Given: y=ex-12 we know that am-n=aman

Q: Question attached

A:

Q: Simplify. - 1 (3a "") (За За

A:

Q: 3&4 please

A: (3) Given that, the normal distribution has a population mean is, μ=50 The expected value of the…