MATHEMATICS HIGH SCHOOL

The raidus of circle p the larger circle is 7 times the radius of circle 0 the smaller circle. What is the ratio of the area of circle to the area of circle p?Your choices are: 1 to 7, 7 to 1, 49 to 1 , 1 to 49
plz explain

Answers

Answer 1
Answer: since we know that the radius of circle p is 7 times that of the radius of circle o we can say that radius of circle p equals 7x and the radius of circle o is x.
using the area formula we can say that area of circle p equals 

Related Questions

Write the equation of a line with a slope of 4 and a y-intercept of −3. 4x + y = −3 4x – y = −3 y = −3x + 4 y = 4x − 3
How many metres in 187cm
How to graph polygons on a coordinate plane
a school sells boxes of cookies each year for a charity fund .the data set shows the number of boxes the 10 families living on willow avenue buy on average every year. does this data have negative positive or zero skew {2,3,2,2,0,5,2,1,1,3}
If sydney answer 15 questions in the first section correctly what is the minimum number of questions she must have answered correctly in the second section

State a conclusion that seems reasonable.Donald is older than Jeanette; Donald is older than Ethel. Donald is older than Allen.

Conclusion:

Answers

Donald is the oldest of the four of them 
Donald Is Older Than Jeanette , Ethel And Allen

Factor the following expression...
x^2 - 2x - 3

Answers

Trying to factor by splitting the middle term

 1.1     Factoring  x2-2x-3 

The first term is,  x2  its coefficient is  1 .
The middle term is,  -2x  its coefficient is  -2 .
The last term, "the constant", is  -3 

Step-1 : Multiply the coefficient of the first term by the constant   1 • -3 = -3 

Step-2 : Find two factors of  -3  whose sum equals the coefficient of the middle term, which is   -2 .

     -3   +   1   =   -2   That's it


Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -3  and  1 
                     x2 - 3x + 1x - 3

Step-4 : Add up the first 2 terms, pulling out like factors :
                    x • (x-3)
              Add up the last 2 terms, pulling out common factors :
                     1 • (x-3)
Step-5 : Add up the four terms of step 4 :
                    (x+1)  •  (x-3)
             Which is the desired factorization

Final result : (x + 1) • (x - 3) 

hope this helps hope i am brainliest i need it 

Suppose 3 rooms cost $596 and 5 rooms cost $860. Write an equation that represents the total cost for the number of rooms.

Answers

(3 • 596 + 5 • 860) can be the equation :)

For a button to fit through its buttonhole, the hole needs to be the size of the button's diameter. What size buttonhole is needed for a button with a circumference of 7.38 centimeters? (Use the value of 3.14 to represent pi, and the formula for circumference = 2*pi*r)

Answers

A button with a circumference of 7.38 cm will need a buttonhole with the size of 2.35 cm.

Since the circumference is equivalent to 7.38 cm, the formula can be displayed as follows:
7.38 cm = 2πr
r = 7.38cm/2π
r= 1.1751592 cm
diameter = 2r
               = 2.3503184 cm or approximately 2.35 cm

And i need help with these problem.An alloy of tin is 15% tin and weighs 20 pounds. A second alloy is 10% tin. How much (to the nearest tenth lb.) of the second alloy must be added to the first alloy to get a 12% mixture.

______ pounds

Answers

Let the required amount of the second alloy be x, then
0.15 x 20 + 0.1x = 0.12(20 + x)
3 + 0.1x = 2.4 + 0.12x
0.12x - 0.1x = 3 - 2.4
0.02x = 0.6
x = 0.6/0.02 = 30

Therefore, to make a 12% mixture, 30 pounds of the secon mixture should be added.
Tin from the first alloy: 20*15% = 3

Tin from the second alloy: x*10% = 0.1x

Total tin: (20 + x)*12% = 2.4 + 0.12x

Total tin = tin from the first alloy + tin from the second alloy
2.4 + 0.12x = 3 + 0.1x

Solve for x:

0.12x - 0.1x = 3 - 2.4
0.02x = 0.6
x = 0.6 /0.02
x = 30

Answer: must add 30 pounds of the second alloy.


 

A function is created to represent the amount of money in your checking account. What restrictions would be made to the domain?-The domain would include all real numbers.* -The domain would only include positive integers. -The domain would only include positive numbers. -The domain would only include integers. I am thinking that it could also be negative. Thank you for any and all help!

Answers

Answer:

B. The domain would only include positive integers.

C. The domain would only include positive numbers.

Step-by-step explanation:

We are given a function that represents the amount of money in the checking account.

As, the function contains the amount of money in the account, the domain cannot have negative values.

So, the domain cannot include all real numbers and it cannot include only integers.

Therefore, the domain can include positive numbers and therefore, it can also include positive integers.

Hence, B and C are correct.
The answer I got was D. (now I'm just typing to make 20 characters) blah blah blah
Other Questions
. A bag contains 7 orange beads, 3 red beads, and 5 white beads. What is the probability ofdrawing a white bead?
I need some major help with this proof. ​
3 pies × 3 cups per pie = cups
Given ∠ABE = 45° and ∠EAB = 63° in ΔABE and∠MNP= 72° and ∠NMP = 63° in ΔMNP. Are the two triangles, ΔABE and ΔMNP similar? If so, by what criterion?A) yes, by AA criterion B) yes, by SAS criterion C) yes, by SSA criterion D) no, not possible to tell.