3 years ago

Help I have like 10 minutes to do this

Mathematics

2 answers:

Misha Larkins [42]3 years ago

8 0

Answer:

Step-by-step explanation:

add all the x's to get the total

k0ka [10]3 years ago

3 0

Answer:

Step-by-step explanation:

The mean is the average so add up all values of the data points and divide by the amount of data points.

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P. John roller skates with a constant

Vitek1552 [10]

Answer:

2 1/2 hours

Step-by-step explanation:

1. multiply 12 by 2 to get 24

2. divide 12 by 2 to get 6 mph (miles per hour)

3. Add the 6 and 24

3 0

4 years ago

Write the equation of a circle for which the endpoints of a diameter are (-2,-2) and (4,-10)

Maurinko [17]

Answer:

Therefore the required Equation of Circle

$x^{2}+y^{2}-2x+12y+12=0$

Step-by-step explanation:

Given:

End point of Diameter be

point A( x₁ , y₁) ≡ ( -2 ,-2 )

point B( x₂ , y₂) ≡ ( 4 , -10 )

To Find:

Equation of a circle =?

Solution:

When end points of the Diameter are A( x₁ , y₁) , B( x₂ , y₂). then the Equation of Circle is given as

$(x-x_{1})(x-x_{2})+(y-y_{1})(y-y_{2})=0$

Substituting the end point are

$(x-(-2))(x-4)+(y-(-2))(y-(-10))=0\\(x+2))(x-4)+(y+2))(y+10))=0\\$

Applying Distributive Property we get

$x^{2} -2x-8+y^{2}+12y+20 =0\\\\x^{2}+y^{2}-2x+12y+12=0$

Therefore the required Equation of Circle

$x^{2}+y^{2}-2x+12y+12=0$

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3 years ago

The perimeter of the triangle is 45. Find the value of x.

statuscvo [17]

Answer:

2.6

Step-by-step explanation:

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3 years ago

Convert 160 kilometers to miles (to the nearest tenth).

ZanzabumX [31]

Here you go :D 99.42

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3 years ago

Read 2 more answers

Mica wants to rent ice skates. Company A charges $15 for the skates and $1 for every hour skated. Company B charges $12 for the

Sergio039 [100]

A - 15+1*(h)

B - 12+2*(h)

plug in 1,2,3 so on and so fourth until they both come out as the same price and that's your answer

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4 years ago