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ASHA 777 [7]
3 years ago
6

A hubcap has a radius of 13 centimeters. What is the area of the hubcap? Round your answer to the

Mathematics
2 answers:
vladimir1956 [14]3 years ago
5 0

Answer:

A = 530.91 cm^2

Step-by-step explanation:

The formula to find the area of a circle is (A = (pi)r^2), where (A) represents the area of the circle, (pi) represents the value (3.1415...), and (r) represents the radius of the circle. Use this knowledge, and substitute in the given information, to solve for the area of the circle.

A = (pi)r^2\\\\A = (3.1415)(13)^2\\\\A = (3.1415)169\\\\A = 530.91

Varvara68 [4.7K]3 years ago
4 0

Answer:

530.66 square cm

Step-by-step explanation:

A=pi*r^2

A=pi*13^2

A=530.66

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What is 36 divided by 1/4
inna [77]

Answer:

144

Step-by-step explanation:

36 ÷ 1/4

We will use copy dot flip

36 * 4

144

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3 years ago
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Does (-3, -7) make the equation y = 4x + 5 true?
choli [55]

Answer: Yes. True

Step-by-step explanation:

In (-3, -7) , -3 is x and -7 is y.

Now, put those values in the equation.

y = 4x + 5

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5 0
3 years ago
Solve the system of equations.<br> – 9y + 4x – 11 = 0<br> - 3y + 10x + 31 = 0
Kruka [31]

value of x =-4 and value of y=-3

(-4,-3) is the solution of system of equations.

Step-by-step explanation:

We need to solve the system of equations

-9y + 4x-11 = 0- 3y + 10x + 31 = 0

Rearranging:

-9y + 4x = 11\,\,\,eq(1)\\- 3y + 10x=- 31 = 0\,\,\,eq(2)

Multiply eq(2) with 3 and subtract eq(2) from eq(1)

-9y + 4x = 11\\-9y+30x=-93\\+\,\,\,\,\,\,-\,\,\,\,\,\,\,\,\,\,\,\,+\\----------\\-26x=104\\x=\frac{104}{-26}\\x=-4

Putting value of x = -4 into eq(1)

-9y + 4x = 11\\-9y+4(-4)=11\\-9y-16=11\\-9y=11+16\\-9y=27\\y=\frac{27}{-9}\\y=-3

So, value of x =-4 and value of y=-3

(-4,-3) is the solution of system of equations.

Keywords: system of equations.

Learn more about system of equations at:

  • brainly.com/question/6075514
  • brainly.com/question/7490805
  • brainly.com/question/13168205

#learnwithBrainly

5 0
3 years ago
A=(2,3) B=(4,5)
andrezito [222]

Answer:

r= a +  \lambda \: b \\ vector \: equation  : \\  \binom{x}{y}  =  \binom{2}{3}  +  \lambda \:  \binom{2}{2}  \\ cartesian \: equation :  \\  \frac{x - 2}{2}  =  \frac{y - 3}{2}  =  \lambda

7 0
3 years ago
(10 + 2)² + (6 -14÷7) =​
BartSMP [9]

Answer:

148

Step-by-step explanation:

12 x 12 + (6-2)

144 + 4 = 148

Hope that helps!

8 0
3 years ago
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