A square prism. The cross section is a triangle with 2 equal sides, 1 side longer than 8 inches, and 2 sides of equal length that are longer than 12 inches.

a triangle with three equal sides, all measuring 8 inches
a triangle with three equal sides, all longer than 12 inches
a triangle with only two equal sides; one side measures 8 inches, and two sides measure 12 inches
a triangle with only two equal sides; one side is longer than 8 inches and two sides of equal length that are longer than 12 inches

answer: 298143

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:

b. f(x) = –√x + 3this is the correct answer