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Bad White [126]
3 years ago
15

A circle with radius of 6 cm sits inside a circle with radius of 9 cm. What is

Mathematics
1 answer:
laiz [17]3 years ago
7 0

Answer:

area of Circle = (pi)r^2

3.14×4

12.56

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Valleywood Golf course offers classes Monday through Saturday. The Saturday classes last 75 minutes. If they offered 705-minutes
Alisiya [41]

Answer:

Step-by-step explanation:

To make the problem easier to solve, we will set it up as the equation of the length of time of each class times the number of classes equals the total amount of minutes. However, since we don't know the number of classes, we'll symbolize our two unknowns with two variables.

75x + 45y = 705

(75x + 45y)/15 = 705/15

5x + 3y = 47

y = (47-5x)/3

It looks like we can't simplify the equation any more, so now it is a matter of trial and error. The minimum number of Saturday classes means the maximum number of weekday classes. We first will test for the maximum by assuming there are no Saturday classes, then will work our way up until x is an integer.

If x = 0

(47-5(0))/3 = 47/3 = 15.6666

If x = 1

(47-5(1))/3 = 42/3 = 14

This works. Therefore, the maximum number of weekday classes is 14, or choice b.

3 0
4 years ago
An amusement park charges an admission fee of 30 dollars per person. The cost, C (in dollars), of admission for a group of p peo
Nuetrik [128]
All you have to do here is multiply 30 by the number of people
so..

cost = 30 \times 2
cost = 60

7 0
3 years ago
Graph the function y = x+2+5. Which point lies on the graph?
sp2606 [1]

Answer:

<u>A</u>

Step-by-step explanation:

<u>Given equation</u> :

  • y = x + 2 + 5
  • y = x + 7

<u>Evaluating the options</u>

<u>A (-2, 5)</u>

  • 5 = -2 + 7
  • 5 = 5
  • Correct!
5 0
2 years ago
Which graphs have rotational symmetry? Check all that apply
Triss [41]

Answer:

Option A and C have rotational symmetry.

Step-by-step explanation:

The graph of odd functions have rotational symmetry about its origin.

Here the first graph is a graph of f(x)=f(x)=x^3 which is an odd function bearing an exponent of 3.

A function is "odd"  when we plug in any negative value in f(x) then it gives negative of f(x).

And we also know that when a graph is mirroring about the y-axis then it is an even functions.

For even functions we have reflection symmetry rather than rotational symmetry.

The second graph is a graph of f(x)=-modulus (x) which is an even function as we can see that its graph is mirroring about the y-axis.

The third graph is a graph of an ellipse which is possessing  rotational symmetry.

The order of symmetry of an ellipse is generally 2.

Order of symmetry:

The order of rotational symmetry of an object is how many times that object is rotated and fits on to itself during a full rotation of 360 degrees.

So graph A and C have rotational symmetry.

4 0
3 years ago
Read 2 more answers
Is this subtracting or adding? all i know its a 180 degree angle i think
GalinKa [24]
This would be subtracting! hope this helped! :)
8 0
3 years ago
Read 2 more answers
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