Who can do this ? who do this question; i will make him brightlist and follow him and vote him. Divide 45 by the difference of 13 and 9 and subtract it from the sum of the product of 3 and 7 and 4 and 2.

45 ÷ (13 - 9) - (3 * 7) +( 4 * 2) =

Step-by-step explanation:

exact form:

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decimal form

18.1538461538

where are the images of the functions i can only see the question you typed.

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: