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Akimi4 [234]
3 years ago
8

Create a system of linear equations that has one solution of y=2x+1 and y=2x+2

Mathematics
1 answer:
weeeeeb [17]3 years ago
3 0

y = 2x + 1 \\  \\ 1. \: y - 1 = 2x \\  \\ 2. \:  \frac{y - 1}{2}  = x \\  \\ 3. \: x =  \frac{y - 1}{2} \\  \\  \\ y = 2x + 2 \\  \\ 1. \: y - 2 = 2x \\  \\ 2. \:  \frac{y - 2}{2} = x \\  \\ 3. \:  - 1 +  \frac{y}{2}  = x \\  \\ 4. \:  \frac{y}{2}  - 1 = x \\  \\ 5. \: x =  \frac{y}{2}  - 1

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A circular field has a area of 14400 sq ft <br> What is the diameter of the field?
Bingel [31]

Answer:

240/sqrt(pi)

Step-by-step explanation:

We know that the area of a circle is $pi*r^2$, and we also know that the diameter of a circle is equal to $2r$.

Let's first make an equation for this problem.

pi*r^2=14400

Dividing both sides by pi, we get

r^2=14400/pi

Now, taking the square root of both sides gives us

r=120/sqrt(pi)

We are trying to find the diameter, which is twice the size of the radius.

Thus, we multiply the equation by two.

2r=240/sqrt(pi)

6 0
3 years ago
What is the equation of a parabola that opens left with a vertex of (-1,1)
xeze [42]
I think it is not possible to find a certain equation from just a given points, it must have more given information because there is a lot of parabola pass throw (-1,1).
6 0
3 years ago
What's -20 times -10 times -1 times 0
neonofarm [45]
Zero.
Anything times zero is zero.
-20 * -10 = 200
200 * -1 = -200
-200 * 0 = 0
4 0
3 years ago
Read 2 more answers
Name the number that is three more than one-fifth of one-tenth of one-half of 5,000.
bearhunter [10]

Answer:

24 or 29 more numbers

Step-by-step explanation:

6 0
3 years ago
The triangles shown below must be congruent.
Ber [7]

Answer:

False

Step-by-step explanation:

The triangles are similar because the angles are the same

We know nothing about the side lengths, so we can say nothing about concurrency.  They may or may not be congruent.  

4 0
3 years ago
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