Let p(x) = 7x + 5 and r(x) = x - 1. Find and evaluate (rp)(2)

Step-by-step explanation:

Given

p(x) = 7x + 5 and r(x) = x - 1.

Now

(rp)(2) = r ( 7 * 2 + 5 )

= r( 19 )

= 19 - 1

= 18

Hope it will help :)❤

i dont know sorry

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: