Ughh , anyone know how to do this or what the answer is

1730

Step-by-step explanation:

The exponential function is of the form

y = a ×

where y is the insect population and n the number of weeks

a and b have to be found by using values from the table.

Using (0, 20), then

20 = a × ⇒ a = 20

Using (1, 30), then

30 = 20 × ⇒ b = = 1.5

Hence

y = 20 × ← exponential function

When n = 11

y = 20 × ≈ 1730 ( nearest whole number )

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.

click to let others know, how is it

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step-by-step explanation: