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tensa zangetsu [6.8K]
3 years ago
13

A circular dinner plate has a radius of 20 centimeters. Find a. the circumference of the plate and b. the area of the plate. Use

3.14 for π.
Mathematics
2 answers:
miv72 [106K]3 years ago
8 0

Answer:

Step-by-step explanation:

circumferrence is = 125.6

2*3.14*20

area is = 1256

3.14*20^2

gayaneshka [121]3 years ago
7 0

Answer:

The area is approximately 1256.64         The circumference is approximately 125.66

Step-by-step explanation:

This is because to find the area of a circle you square the radius and multiply by Pi. To find circumference, you can multiply the Diameter (twice radius) by Pi.

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Which number produces an irrational number when multiplied by 1/3
MArishka [77]

We can simply observe that.

  1. 0.777... is rational, because it is a number with infinite but repeating decimal part.
  2. 1/3 is rational, because it's the division between two integers
  3. -\sqrt{16}=-4, so this is rational as well.

Since the product of two rational numbers is always rational, we have that

0.\bar{7}\cdot \dfrac{1}{3},\quad \dfrac{1}{3}\cdot \dfrac{1}{3},\quad -4\cdot \dfrac{1}{3}

are all rationals, since they are the product of two rationals.

On the other hand, we have

\sqrt{27}=\sqrt{9\cdot 3}=3\sqrt{3}

and thus

3\sqrt{3}\cdot \dfrac{1}{3}=\sqrt{3}

which is irrational.

3 0
3 years ago
Carmen represents the equation y=x^2+1 using a graph. She says her graph shows there is more than one input for almost every out
Korvikt [17]

No - It is a function.


A relation which is not a function has more than 1 output for an input.

7 0
3 years ago
Ok, I would really like some help ^.^ If you could and have the time...would you mind breaking down the answer for me please, he
uysha [10]

Answer:

C

Step-by-step explanation:

4 x 4=16 and half of 4 is 2 so the answer is C)4

5 0
3 years ago
Read 2 more answers
If 5.5 ounces of silver is worth $80 how much could you buy with $15 (setup and solve a proportion)
Liono4ka [1.6K]

Answer:

Problem-solving requires persistence as much as it requires ingenuity. When you get stuck, or solve a problem incorrectly, back up and.

124 pages

Step-by-step explanation:

6 0
3 years ago
Could someone please help ?
blondinia [14]

Answer:

No

Step-by-step explanation:

Put x = 2 into both equations:

For x- 10 = 2-10 = 8 (Not  > 8)

For -0.5x-4 = -0.5*2-4 = -5 (Not < -8)

Hence, the answer is no.

4 0
3 years ago
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