Mathematics College

The circumference of a circle is 7xm.
What is the area of the circle?
A. 3.57x m²
B. 12.257x m2
C. 147xm2
D. 497xm2

Answers

Answer 1

Answer:

A = 3.57 m²

Step-by-step explanation:

Given that,

The circumference of a circle is 7xm.

The expression for the circumference of a circle is given by :

[tex]C=2\pi r[/tex]

r is the radius of the circle

[tex]r=\dfrac{C}{2\pi}\\\\r=\dfrac{7}{2\times \dfrac{22}{7}}\\\\r=1.11\ m[/tex]

The area of a circle is given by :

[tex]A=\pi r^2\\\\A=3.14\times (1.11)^2\\\\A=3.89\ m^2[/tex]

Out of given option,

A = 3.57 m²

So, the area of the circle is 3.57 m².

Related Questions

WILL GIVE BRAINLIEST. ARE THOSE EQUATIONS THE SAME

Answers

Answer:

no

Step-by-step explanation:

m+m+m = 3m

m+3=m+3

they are not equal

Hope it helps!

Answer:

yes because there is 3 m so m plus 3 is equivalent to it

Step-by-step explanation:

From 1999 to 2008, the United States Mint
produced commemorative quarters for each
state in the United States. Each year, quarters for
fi ve diff erent states were circulated to the public,
and many people collected the coins. Steven
wanted to collect these coins, so his uncle gave
him a handful of the state quarters. Steven made
this list of the coins that he was given.
1. Steven put all the coins in his pocket and
pulled one out at random.
a. What is the probability that he selected
a Texas quarter?
b. What is the probability that he selected a quarter minted in 2002?
c. Use the sample space to explain how you determined these probabilities.

Answers

Answer:

a. [tex]\frac{2}{13}[/tex]

b. [tex]\frac{3}{13}[/tex]

c. See the step-by-step explanation.

Step-by-step explanation:

A table given by OP

State Year

Tennessee 2002

Tennessee 2002

Ohio 2002

Alabama 2003

Maine 2003

Florida 2004

Florida 2004

Florida 2004

Texas 2004

Texas 2004

California 2005

California 2005

Kansas 2005

a. There are 2 Texas quarters and 13 coins in total, so the probability of selecting a Texas quarter at random is [tex]\frac{2}{13}[/tex].

b. Analagously, the probability is  [tex]\frac{3}{13}[/tex], because there are 3 quarters minted in 2002.

c. See a and b.

2
What is the area, in square centimeters, of the figure below?
2.4 cm
-5.8 cm
A 6.96
B) 10.6
C 13.92
2
D 17.4.

Answers

Answer:

area of rectangle=l×b=2.4×5.8=13.92cm²

The right answer is letter C

Solve system by using substitution: 5x + 3y = -4
y - 2x = 6

Answers

Answer:

x = -11/3, y = -4/3

Step-by-step explanation:

[tex]y-2x=6\\y = 2x + 6[/tex]

[tex]3(2x + 6) = -4\\6x + 18 = -4\\6x = -22\\x = -11/3[/tex]

[tex]3y = -4\\y = -4/3[/tex]

What is the value of y?
What is the area, in square inches, of the rectangle

Answers

Answer:

Part A:  y = 3

Part B:  Area = 60 sq units

Step-by-step explanation:

we can create this system of equations from the information given:

8y + 2x = 34

10y + 2x = 40

now we can subtract to get:

-2y = -6

y = 3

solve for 'x':

8(3) + 2x = 34

24 + 2x = 34

2x = 10

x = 5

Area of Rectangle is 12 x 5

Solve the system of linear equations by substitution.
y = 8x – 6
2x – 4y = 24

Answers

Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:
(
0
,
−
6
)
(
0
,
-
6
)
Equation Form:
x
=
0
,
y
=
−
6

the equation y=36x represents the relationship between x the number of yards and y the number of inches


which ordered pairs represent the number of yards and the number of inches in the given equation? choose all that apply.​

Answers

Your answer is a cx I’m doing the sAme and got it correct

Answer: (2,72) (5,189

Step-by-step explanation:

I did the I Ready

If AD = 21, BF = 8, and DF = 8, what is the value of AB?

Answers

Answer:

AB would be 21

Step-by-step explanation:

Sides BF and DF equal 8, because triangles BFC and DFC are both right triangles and they have two equal sides (hypotenuses are equal and both triangles share side FC), triangles BFC and DFC are congruent triangles, which means side DC is equal to BC. Since right triangles ADC and ABC share side AC and BC = DC, they are congruent triangles, meaning AB will equal AD, which is 21.

2x - 5y + 3z 5x + 9y - 2z

Answers

Answer:

3xz5+2x+4y−2z

Step-by-step explanation:

2x−5y+3z5x+9y−2z

=2x+−5y+3xz5+9y+−2z

Combine Like Terms:

=2x+−5y+3xz5+9y+−2z

=(3xz5)+(2x)+(−5y+9y)+(−2z)

=3xz5+2x+4y+−2z

1. 72% of the students in Math 6 at AZVA are currently mastering their lessons. If 306 students are currently mastering their math lessons, how many students are in Math 6?

Answers

Answer:

i need help to yall help usssssssssssssssssssss pls

Step-by-step explanation:

Answer:

306/x = 72/100

72x= 306 x 100

72x = 30600

X = 425

Step-by-step explanation:

PLEASE HELP AND VERY FAST​

Answers

Answer:

B

Step-by-step explanation:

I am so sorry if that is incorrect

Cedric multiplied (6x+11) by a second factor to get a product of 36x^2-121. Find the second factor. ​

Answers

Answer:

6x-11

Step-by-step explanation:

36x² - 121 is the difference of squares.

36x² - 121 = (6x+11)(6x-11)

Determine if the following lines are parallel, perpendicular, or neither
y = 6x
- 12x + 2y = -1
Select the correct answer below:
Parallel
O Perpendicular
Neither parallel nor perpendicular

Answers

Determine if the following lines are parallel, perpendicular, or neither

y = 6x- 12x + 2y = -1

Select the correct answer below:

Parallel

O Perpendicular

Neither parallel nor perpendicular

Answer:

It's perpendicular

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