Determine the scale factor for abc to a’b’c

2

Step-by-step explanation:

Since ABC and A'B'C are similar triangles, the scale factor between their matching sides are equal to the overall scale factor. Thus, you would need to multiply AC by 2 to get the length of A'C'. 8/4 = 2.

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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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step-by-step explanation:

the correct answer is $7.38

step-by-step explanation: