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Tamiku [17]
3 years ago
12

the points (4,-4) and (4,-6) lie on a circle with the radius of 1. what is the center point of the circle

Mathematics
1 answer:
ycow [4]3 years ago
7 0
The centre point is given by;
( \frac{ x_{2}+ x_{1}  }{2} , \frac{ y_{2} + x_{1} }{2} )
=(  \frac{4+4)}{2}  + \frac{-4+(-6)}{2} )
=( \frac{8}{2} , \frac{-10}{2} )
=(4, -5)
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Answer:

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3 years ago
Truck brakes can fail if they get too hot. In some mountainous areas, ramps of loose gravel are constructed to stop runaway truc
pickupchik [31]

Kinetic engery = -1/2mv^2

Work = Fd

Combine:

-1/2mv^2 - Fd = 0

-1/2mv^2 = (0.30*15000*9.81*cos(6))d = 0

Multiply both sides by 2:

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7 0
3 years ago
Solve the system of equations y = 2x + 3 and 4x - 2y = -6 using a graphical method.
emmasim [6.3K]

Answer:

-1

Step-by-step explanation:

You are asked to solve this set by substitution. Note that the first equation defines

the value of y in terms of x. Therefore, you can use the right side of this equation

(2x + 3) as a substitution for y in the second equation. When you substitute 2x +3 for y

in the second equation, the result is:

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2x + 3 = 4x + 7

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Let's set the goal of getting all the terms that contain x isolated on the left side of

the equal sign and all the constants by themselves on the right side. Begin by getting rid

of the +3 on the left side by subtracting 3 from the left side. But if you subtract

3 from the left side you must also subtract 3 from the right side. These subtractions

result in the following sequence:

.

2x + 3 - 3 = 4x + 7 - 3

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Combining numbers on the left side and on the right side simplifies the equation to:

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2x = 4x + 4

.

Now, in a similar fashion, let's get rid of the 4x on the right side by subtracting

4x from the right side. When we do this subtraction, to keep the equation in balance

we must also subtract 4x from the left side. This results in:

.

 

2x - 4x = 4x - 4x + 4

.

On both sides of the equation combine terms containing x to get:

.

-2x = 4

.

Finally, solve for x by dividing both sides of the equation by -2 because -2 is the multiplier

of x. This results in:

.

x = 4/-2 = -2

.

So now that we know x = -2, we can return to either one of the original equations  

in the equation set and substitute -2 for x. Then we can solve for y. Let's return

to the first equation and substitute -2 for x. This begins with:

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y = 2x + 3

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Then substituting -2 for x gives:

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y = 2*(-2) + 3 = -4 + 3 = -1

7 0
3 years ago
The astronomical unit (AU) is the mean distance from the sun to the earth.
Mrac [35]
By definition, we have to
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 answer
<span> 3.45 × 10,superscript,8,baseline, km
</span>
7 0
3 years ago
Read 2 more answers
Help me with this question please im confuesd thank you
Leto [7]

Answer:

32inches

Step-by-step explanation:

i don't know if that's correct but since the diameter is 8 inches and the wheel would turn four times it will be 32

5 0
3 years ago
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