Prof. Martin is designing a spotlight that uses a parabolic reflecting mirror and a light source. She models the shape of the mirror by using
$\left(x-2\right)^2=10\left(y-3\rig ht)$
(x−2)2=10(y−3), where x and y are both measured in inches.
Where is the focus of the spotlight?
Round decimals to the tenth place (no fractions) and type your answer in the following form without spaces: (x, y)

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:

answer: 1inch=7days  

12inch=12*7=84days

step-by-step explanation:

42.4 6th grade students prefer hip hop

step-by-step explanation:

40 percent of 106 = 42.4