A quadratic function is shown in the graph. Another quadratic function has the equation y-2x? 12x + 64. Which function has the
larger maximum and what is its maximum?
The graph with a maximum of 1
The graph with a maximum of 8.
y = -2x2 -12x + 64 with a maximum
y = -2x - 12x + 64 with a maximum of 82

2nd one in the first row is correct

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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:

its 60

4 x 12 = 48

3 x 4 = 12

48 + 12 = 60

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