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
natulia [17]
3 years ago
15

A circle has a circumference of 22 cm. What is the diameter, area, and radius. Round to the nearest tenth.

Mathematics
1 answer:
mars1129 [50]3 years ago
5 0
The circumference is 22
Circumference = 2πr 
22 = 2πr
It's the same thing as π*diameter
22 = <span>πd
divide both sides by </span><span>π to isolate d
d, or the diameter, equals 7.0028175 cm, or approx. 7 cm
the radius is half of the diameter so it is </span><span>3.50140875, or approx. 3.5 cm
the area of the circle is 
</span><span>A = π r²
A = </span>π (3.5)<span>²
A = </span><span>π (12.25)
A = 38.4845
The area equals approximately 38.5 cm^2.

Hope this helps!</span>

You might be interested in
What is the slope of o line that passes through (-4,-14) and (19,11)?
DerKrebs [107]

Answer:

D, see description below.

There is a possible typo in the problem since these points have slope 25/23.

Step-by-step explanation:

To find the slope of a line, calculate the distance between points with a ratio of vertical to horizontal distance. This is done using the formula:

m=\frac{y_2-y_1}{x_2-x_1}

Here the points are (-4,-14) and (19,11). Substitute and simplify.

m=\frac{11--14}{19--4}=\frac{11+14}{19+4}=\frac{25}{23}

I think there is a typo in your points (-4,-14) and (19,11) because the answer doesn't align to the answer choices. But based on them, I would answer D or 24/23 since it's the closest value.

6 0
3 years ago
ΔABC undergoes a translation to become ΔA'B'C'. Are the triangles congruent, similar, neither or both? Explain.
Alenkasestr [34]
I can’t solve without a graph.
6 0
2 years ago
Round 1,490 to the nearest hundred
Arlecino [84]
The answer is 1,500..
3 0
3 years ago
Read 2 more answers
Formula to find volume of a right triangular prism
ozzi
The formula is base x height
7 0
3 years ago
Last year a banquet hall charged $65 per person to attend a function. The function C(p) = 65p represents the total cost, C, to r
zlopas [31]

Answer:

Domain = [0, 50]

Range   = [0, 3250]

Step-by-step explanation:

A function shows the relationship between two variables (independent variable and dependent variable). The independent variable is a variable not dependent on any variable, it is the input of the function while the dependent variable is a variable dependent on other variable, it is the output of the function.

The domain of a function is the set of all input variables (independent variable) and the range of a function is the set of all output variables (dependent variables).

In the function C(p) = 65p, p is the independent variable and C(p) is the dependent variable.

Since the hall can hold a total of 50 people, the domain of the function = [0, 50]

C(0) = 65(0) = 0, C(50) = 65(50) = 3250

Hence, the range of the function = [0, 3250]

8 0
3 years ago
Other questions:
  • An item on sale costs
    10·2 answers
  • Without drawing the graph, find out whether the lines representing the following pair of linear equations intersect at a point,
    8·1 answer
  • Samuel and Christopher go to the movie theater and purchase refreshments for their friends.
    5·1 answer
  • What is 2.4375 as a fraction simplified?
    11·1 answer
  • Which of the following are explicit equations for the nth term of some kind of arithmetic sequence? a) Pn=p1+(n-1)p1 b) an=an-1+
    6·1 answer
  • A space traveler saw 17 stars. All but 8 disappeared into a black hole. How many were left?
    8·1 answer
  • Which statement describes the graph?
    5·1 answer
  • Help me please why is school hard i-
    12·2 answers
  • A box with a height (x+5) has a square base with side x. A second box with height (x+2) has a square base with side (x+5). If th
    10·1 answer
  • What is the area???
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!