A small silver dollar pancake served at a restaurant has a circumference of 2 inches. A regular pancake has a circumference of 4 inches. Is the area of the regular pancake twice the area of the silver dollar pancake? Explain.

Answers

Answer 1
Answer: C=(2)(pi)(radius)
A=(pi)(radius)^2

Area of small silver dollar pancake=4pi
Area of regular pancake=16pi
16pi/4pi=4 times bigger than silver dollar pancake
NO, because in order to find the area of a circle you need to multiply pi with radius squared.

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Please help! I will Upvote!Find a solution to the following system of equations.−2x + y = −3−x + 2y = 3A- (–3, –9)B- (3, 3)C- (–21, –9)D- (0, 2)

Solve, using the substitution method.4x + 2y = 11
x – 2 = – 2y


A.


B.


C.


D.

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4x+2y=11 \nx-2=-2y \n \n\hbox{from the 2nd equation:} \nx-2=-2y \nx=-2y+2 \n \n\hbox{substitute -2y+2 for x in the 1st equation:} \n4(-2y+2)+2y=11 \n-8y+8+2y=11 \n-8y+2y=11-8 \n-6y=3 \ny=-(3)/(6)=-(1)/(2) \n \n\hbox{solve one of the equations for x:} \nx=-2 \cdot (-(1)/(2)) +2=1+2=3 \n \n \hbox{the answer:} \n x=3 \n y=-(1)/(2)
4x + 2y = 11
x - 2 = -2y
First you have to get a variable alone in one of the equations.

x - 2 = -2y
   +2    +2
--------------
x = -2y + 2
Next you substitute -2y +2 for x in the second equation.

4(-2y + 2) + 2y = 11
Distribute. 

-8y + 8 + 2y = 11
Combine like terms.

-6y + 8 = 11
Get the variable (y) by itself.

-6y + 8 = 11
       -8    -8
--------------------
-6y = 3
Finally get y by itself.

-6y = 3
-----   ------
-6      -6

Y = 0.5

Now to get x you plugin the answer for y.

x - 2 = -2y
x - 2 = -2(0.5)
x - 2 = -1
   +2     +2
x = 1

(1, 0.5) Is your ordered pair. :D

happy paws charges $19.00 plus $1.50 per hour to keep a dog during the day. Woof Watchers charges $15.00 plus $2.75 per hour. write an equation to find for how many hours the total cost of the services is equal.

Answers

Happy paws y=1.5x+19

Woofy Watchers y=2.75x+15

Help. please. i beg.

Answers

Answer:

80

Step-by-step explanation:

Answer: 80

Step-by-step explanation: Maybe research supplementary angle rules?

How many grandparents have my grandparents?who can solve it is very good on maths! it is just a lpgic problem! i know the answer :)

Answers

Answer: Well, each grandparent would only have two parents, and those parents would each have two parents, unless adoption was involved, so there would be four grandparents for each grandparent. Eight would be your answer, I think.

this doesn't have enough information. it spend on ages, how many children per generation, if direct bloodlines only or adoption count, half relatives, etc.

Write a rule for the linear function in the table. x f(x) –3 –1 0 2 3 5 6 8 A. f(x) = x + 2 B. f(x) = 3x C. f(x) = x – 2 D. f(x) = x – 1

Answers

Answer:

The answer is A.

Step-by-step explanation:

In this kind of exercise the usual way to solve it is s kind of trial an error. We evaluate f(x) in the given values of x and check if it corresponds with the values of f(x) in the table. If only one of the calculations does not correspond we dismiss the function.

Let us start our analysis from D. to A.

D.  In this case f(x) = x-1, then f(-3) = -3-1=-4, and the result does not correspond to the values of the table (recall f(-3)=-1).

C. The same idea: we have f(x)=x-2, then f(-3)=-3-2=-5, and the result does not correspond to the values of the table (recall f(-3)=-1).

B. Here f(x)=3x, then f(-3)=3*(-3)=-9, and the result does not correspond to the values of the table (recall f(-3)=-1).

A. Now f(x)=x+2, then f(-3)=-3+2=-1, and the result does correspond to the values of the table (recall f(-3)=-1). So, we need to check the next values of the table:

f(0)=0+2=2, f(3)=3+2=5 and f(6)=6+2=8.

As all the values are equal to those in the table, we conclude that A. is the correct answer.

If you notice:

x = -3,  f(x) = -3 + 2 = -1

x = 0,  f(x) = 0 + 2 = 2

x = 2,  f(x) = 2 + 2 = 4

x = 3,  f(x) = 3 + 2 = 5

And so on...

By observation:    f(x) = x + 2.    Option (A).

I hope this helps.

Help asap. Like hurry

Answers

Answer:

53.85

Step-by-step explanation:

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