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
pav-90 [236]
3 years ago
13

You are standing next to a really big circular lake. You want to measure the diameter of the lake, but you don't want to have to

swim across with a measuring tape! You decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400pi m.
What is the diameter d of the lake?
Mathematics
2 answers:
Nuetrik [128]3 years ago
5 0
The diameter would be 400 because one of the two formulas to find a circumference is C= pi (D) so according to ur information, the diameter would be 400
alexdok [17]3 years ago
4 0

Answer:

C = πd

400π = πd

400 m = d

Step-by-step explanation:

You might be interested in
I NEED HELP ASAP, will give brainliest
AleksAgata [21]
The answer is A I believe but I might be wrong.
7 0
3 years ago
What is the x-value at which the graphs of y = x2 – 2x + 1 and y = x2 + 2x – 7 inter-<br> sect?
Kitty [74]

Answer:

x = 2

Step-by-step explanation:

Both equations are equal to y, so they're also equal to each other.  We then set them equal to each other:

x^2 - 2x + 1  =  x^2 + 2x - 7

We now do algebra to isolate x.  Subtract 1 from both sides.

x^2 - 2x  =  x^2 + 2x - 8

Subtract 2x from both sides.

x^2 - 4x  =  x^2 - 8

Subtract x^2 from both sides.

-4x = -8

Divide both sides by -4.

x = 2

5 0
3 years ago
17 Find the volume of the figure below. (1 Point) V = luh​
sveticcg [70]

Answer:

sorry I wish I could help but I'm stupid

7 0
3 years ago
Points B and B' have symmetry with respect to P. Find the coordinates of P when B is (2, 8) and B' is (2, 2). A. (2, 5) B. (0, 5
Alecsey [184]

Answer:

A. (2, 5)

Step-by-step explanation:

If B and B' have symmetry, then P is a midpoint between those points. We can determinate the location of point P by using the midpoint equation, whose vectorial form is:

P(x,y) = \frac{1}{2}\cdot B(x,y)+\frac{1}{2}\cdot B'(x,y) (Eq. 1)

If we know that B(x,y) = (2,8) and B'(x,y) = (2,2), then the location of P is:

P(x,y) = \frac{1}{2}\cdot (2,8)+\frac{1}{2}\cdot (2,2)

P(x,y) = (1, 4)+(1,1)

P(x,y) = (2, 5)

Which corresponds to option A.

7 0
3 years ago
Are 17 heartbeats in 15 seconds and 68 heartbeats in 60 seconds Equivalent
Andre45 [30]

Answer:

1.133.

Step-by-step explanation:

Yes because if you divide 17 by 15 you get about 1.133 and if you divide 68 by 60 you also get about 1.133.

4 0
3 years ago
Read 2 more answers
Other questions:
  • 0.60p=p-32 what is the answer and work
    12·1 answer
  • Round off 0.043 to one significant figure
    13·1 answer
  • in a right triangle, the length of the hypotenuse is 20 inches and the length of one leg is 15 inches. What is the length of the
    13·2 answers
  • Tuesday jane walked 52/3km at recess.they walked the same for 3 days.how much di<br> d she walk.
    7·2 answers
  • HELP!!! Please answer today!
    11·1 answer
  • If two lines have different slopes and the same y-intercept, the two lines ( ___)
    7·1 answer
  • What is the answer for this 1/3x=-4/5
    14·1 answer
  • Please Help Me! Find the missing length indicated. Leave your answer in simplest radical form.
    5·1 answer
  • The students in Ms. Hill’s class are reading a 325-page book. There are about 90,000 words in the book.
    8·1 answer
  • How much do 10 pieces of candy cost if 1000 pieces cost $70?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!