5. Examine the expression below. Select the answer that correctly completes each statement below. * Enter your answer for all parts below. Sample C, B, C

5x+2y+7

a The term 5x could be read as:

A the sum of 5 and x

B. the product of 5 and x

C. the quotient of 5 and x

b. In the expression, 7 is a:

A coefficient

B. constant

C. variable

c. In the expression, 2 is a:

A coefficient

B. constant

C. variable ​

43

step-by-step explanation:

49%

step-by-step explanation:

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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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