The diameter of a circle is 18mm. What is the area of the circle in terms of pi?

Answers

Answer 1

Answer: Area of a circle = pi x radius squared
Radius of a circle is from any point on the circumference to the centre
Diameter is the distance between two points on the circumference with the line crossing the centre
So radius is half of the diameter...
In this example radius is therefore 9mm (half of 18mm)
Square this... 9x9=81
So in terms of pi the answer is 81pi
To get the full answer you would just times pi (3.14) by 81 =254.34

Related Questions

Solve. 4 - 2x = 10 A) -7 B) -3 C) 0 D) 3
Find the square root of 7-2√5
for each babysitting job, Ashley charges 2.50 dollars for bus fare plus 8 dollars per hour for each hour she works. She charged 30.50 dollars for her last babysitting job. how many hours did she babysit for that job
The expression 4x/5 - 2x/5 is equivalent to...a.) x/2 b.) x/5 c.) x/15 d.) 2x/15
the base price to rent a car is $60, and there is an additional cost of $2 per mile. the base price to rent a truck is $40, and their is an additional cost of $3 per mile. At how many miles will the cost be the same to rent either vehicle

Thirty-five percent of students at Jones High School ride the bus. Two hundred seventy-three students ride the bus. How many students go to Jones High School? A) 96 B) 560 C) 694 D) 780

Answers

Answer: D) 780 is the right option. The total number of students go to Jones High School=780.

Step-by-step explanation:

Let the total students go to the Jones High School be 'x'.

Percentage of students ride the bus=35%

Number of students ride the bus= 273

According to the given question,

35% of x=273

$\n\Rightarrow(35)/(100)*\ x=273\n\n\Rightarrow\ x=(273*100)/(35)\n\Rightarrow\ x=780$

he total number of students go to Jones High School=780.

when I solved it I got 750.(273÷.35=780)

in class, matthew stated "i think that a negative is like an opposite. That is why multiplying a negative times a negative equals a positive. The opposite of negative is positive, so it is just like multiplying the opposite of a negative twice, which is two positives." Do you agree or disagree with this statement? What would you say in response to him?

Answers

Answer: Yes, I agree with this statement.

Step-by-step explanation:

Yes, I agree with this statement.

Whenever we multiply two negative numbers, we get a positive number.

As two negatives makes a positive.

Negative is just like an opposite.

Opposite of 4 is -4.

and negative of 4 is also -4.

The opposite of negative is positive.

i.e. opposite of -4 is 4.

So, Negative is always treat as opposite.

Yes and no. A negative number and it's opposite are 'integers.' Yes, a negative and a negative multiplied together give you a positive. The two negative signs cancel out making it positive. But no, a positive and a positive multiplied together do not give you a negative. When you subtract positive numbers you can get a negative, but not when multiplying. If you were to do a positive times a negative it would be negative because the positive can't cancel it out. Example: -3 · -3 = 9. [] 3 · 3 = 9. [] -3 · 3 = -9. Other than the positive number part, the statement is true about the negatives. I hope that helped!

Whitter is 4/9 times 2/3 equal to?

Answers

$(4)/(9) * (2)/(3) \n \n (4 * 2)/(9 * 3) \n \n (8)/(27) \n \n$

The answer is: 8/27 or 0.2963.

My other answer was wrong it is 8/27

Why is it difficult/ impossible to find even prime numbers?

Answers

It is difficult because prime numbers are numbers with no factors. There's not many. A lot of one digit numbers are prime and odd numbers but after 2, all of the even whole numbers are composite and some odds past 100 (and some before 100) are, also

PLEASE HELP MEIn the triangle shown, GR = 11, BR = 8, and BG
= 7.
Which statement is true about the angles in △
RGB ?
A m ∠ R is the greatest
B m ∠ G is the greatest
C m ∠ B is the greatest
D m ∠ G is the least