An expression is shown below. What is the product of the two factors?

½ *(p+1)(q+1)(r+1)

Step-by-step explanation:

step 1-where a ,b,c are prime numbers and the p,q,r are natural numbers as their respective powers. step 2 -Find Number of factors which can be expressed as( p+1)(q+1)(r+1). step 3-Number of ways to express the number as a product of two numbers is exactly half its number of factors i.e.½ *(p+1)(q+1)(r+1).

answer: sine

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: