1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
netineya [11]
2 years ago
8

Can someone help mee

Mathematics
1 answer:
Alborosie2 years ago
5 0
The answer is pi=c/d and c=pi•d
You might be interested in
Solve the system of linear equations by graphing. Round the solution to the nearest tenth as needed. Y + 2.3 = 0.45x and -2y = 4
HACTEHA [7]

Answer:

(2.4, -1.2)

Step-by-step explanation:

Start by moving the x and the y to the same side and moving the number across the equal sign in both equations. We should now have y-0.45x=-2.3 and 2y+4.2x=7.8. We can use the elimination method by multiplying the first equation by -2 to get -2y+0.9x=4.6 and 2y+4.2x=7.8. From there, add the two equations together, eliminating y (-2+2=0). We now have 5.1x=12.4; divide both sides by 5.1 to get x=2.4. Then, in any of the two equations, let's use y-0.45x=-2.3, substitute x with 2.4. Now we have y-1.08=-2.3. Add 1.08 to both sides to get y=-1.22; round that to the nearest tenth to get -1.2.

4 0
3 years ago
Read 2 more answers
paul bought a soft and a sandwich for 9.90. what equation may be used to find the price of each item if the sandwich cost 3.5 ti
irina [24]

So, let's say the soft drink equals y and the sandwich equals x.

x + y = 9.9

The sandwich costs 3.5 times as much as the soft drink

x = 3.5y

Therefore, we can replace x with 3.5y since they're the same thing

3.5y + y = 9.9  <-- That's the equation :)


3 0
3 years ago
Mrs. Bailey gives a test, and her students’ scores range from 30 to 70. She decides to curve the scores, so that they range from
Harman [31]

Answer:

f(x) = x*3/4 + 42.5

Step-by-step explanation:

The original difference between the pair is 70 - 30 = 40

The new difference between the pair is 95 - 65 = 30

Since the differences are not the same, Mrs Bailey must first perform a (slope) multiplication by a factor of 30/40 or 3/4

Then 30 * 3/4 = 22.5

Then she can shift the scores up by 65 - 22.5 = 42.5 in order to get the range from 65 to 95

Therefore, f(x) = x*3/4 + 42.5. We can test that

f(30) = 30*3/4 + 42.5 = 65

f(70) = 70*3/4 + 42.5 = 95

8 0
3 years ago
{y=-x+1<br> {y=4x-14<br> please help me <br> my paper is due today
Temka [501]

- x + 1 = 4x - 14 \\  - x - 4x =  - 14 - 1 \\  - 5x =  - 15 \\ x = 3

Substitute x = 3 in any given equations. I will do in y = - x + 1

y =  - x + 1 \\ y =  - 3 + 1 \\ y =  - 2

Therefore the answer is (3,-2)

7 0
3 years ago
The area of the surface of the swimming pool is 210 square feet. What is the length d of the deep end in feet
Natali [406]
72 is the length d of how deep end in feet}
6 0
3 years ago
Other questions:
  • The average of Paula's two test scores must be 80 or more for her to get at least a B in the class. She got a 72 on her first gr
    9·1 answer
  • Consider the exponential function f(x) = (15x). What is the value of the growth factor of the function
    7·2 answers
  • Which explains whether ΔFGH is congruent to ΔFJH?
    14·2 answers
  • Answer as a decimal.
    10·1 answer
  • consider the systems of equations below 4x-8y=12 11x+7y=33 determine if they can be used to create an equivalent system.
    13·1 answer
  • Two pupils each drew a triangle with one side of 6 cm , one side of 10 cm and one side of 7 cm. Must their triangles be congruen
    14·1 answer
  • Y=3x18
    10·1 answer
  • help me please !! find the domain and range of the function represented by the graph. determine wether the domain is discrete or
    12·1 answer
  • What is 500 x 200 + 300 - 400 =
    13·2 answers
  • Write the equation of the line in fully simplified slop-intercept form.<br><br> please help
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!