The product of the polynomials (3x + 2) and (-x-3) is?

3x²-11x-6

Step-by-step explanation:

(3x+2)(-x-3)

Then you Foil, AKA multiply the First Outside Inside and Last and then add them together

3x²-9x-2x-6

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation: