2 PONS
Factor the polynomial: x(3x + 5) - 4(3x+5)
O A. (3x+5)(x - 4)
O B. 4x(3x + 5)
O C. (3x+5)(x+4)
O D. -4x(3x + 5)
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The right answer is of option A.

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optio a

Step-by-step explanation:

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: