Your friend pulls out a huge home baked pizza from the oven and tells you the area is a=625(pi)cm2. what is the diameter of this pizza

Diameter = 50 cm

Step-by-step explanation:

We are given that the area of a home bakes pizza is .

Here, we are assuming that the pizza is circular and we know that the area of a circle is given by:

So equating the given value to find the value of the diameter.

If the radius is 25 cm, then  diameter = 25 × 2 = 50 cm

The diameter of the pizza= 50 cm

Step-by-step explanation:

Points to remember

Area of circle = πr²

Where r is the radius of circle

It is given that, area of pizza is 625π cm²

A pizza is like a circle.

Find the radius of pizza

Area = πr²= 625π cm²

r² = 625π/π = 625

r = √625 = ±25

radius r = 25cm

To find the diameter of pizza

Diameter = 2r  = 2 * 25 = 50 cm

overpriced

step-by-step explanation:

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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