Aladder is leaning against a building the base of the ladder is 6 feet from the building and the top of the letter rests on the building 8 feet above the ground what is the length, in feet of the ladder

Remark

This is an application of the Pythagorean Theorem. The formula you will be using is a^2 + b^2 = c^2 and you are looking for c

Givens

a = 6

b = 8

c = ??

Sub and solve

a^2 + b^2 = c^2

6^2 + 8^2 = c^2

36 + 64 = c^2

100 = c^2

sqrt(c^2) = sqrt(100)

c = 10

The length of the ladder is 10 feet.

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: