Untitled Question * 1. Triangle ABC is shown on the coordinate grid. Mrs. Massey will reflect
the triangle across the x-axis to create triangle A'B'C'. Which rule describes
this transformation?
A. (x, y)--(-x, y)
B. (x, y) -(x, -y)
AV
C. (x, y) -(y, x)
D.
(x, y)--(-y, x)
A

7

step-by-step explanation:

the answer would be 7

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: