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Alja [10]
4 years ago
10

Find the solution of this system of equations 10x-7y=-1 -2x-7y+-25

Mathematics
1 answer:
leonid [27]4 years ago
3 0
The answer to this question is  y=3, x=2

I hope this helps!!!!!!!!

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Absolute value of (0, -4/5)
Crazy boy [7]

To answer this question, we need to know what absolute value is in the first place. <u><em>ANSWERS ARE AT THE BOTTOM.</em></u>

Absolute value represents how far something is from 0 in a number line.

For example, lets take 4.

4 is 4 units away from 0 on the number line, so the absolute value of 4 is 4.

Now lets look at another example, -4. -4 is also 4 units away from 0, just in the other direction. However, when calculating absolute value, we do not care about the direction. Therfore, the absolute value of -4 is also 4.

Now let's look at your problem.

You want the <em>absolute value</em> of 0 and -4/5

<u><em>Following the same principle above about the distance from 0, here are your answers:</em></u>

<u><em></em></u>

<u><em>Absolute value of 0</em></u><u><em>: </em></u><em>0</em>

<em></em>

<u><em>Absolute value of -4/5</em></u><u><em>: </em></u><em>4/5</em>

8 0
2 years ago
Write y=x^2-4x-1 in vertex form
Dvinal [7]

Answer:  y= (x+2)² − 5

Step-by-step explanation:

The way I got this answer is by completing the square. The first step though, when looking at this equation, is to see if we can factor it. The way to check is to look at the coefficient for x² which is 1, and the constant, in this case -1. If we multiply those together, we get  −. Now we look at the middle term, 4x. We need to find any numbers that multiply to equal  −  1x² and add to  4x. There aren't any, which means it is not factorable.

Hope I helped

7 0
3 years ago
The formula used to convert degrees Celsius to degrees Fahrenheit is
bonufazy [111]

The formula to convert degrees Fahrenheit to Celsius is:

\bf{^{\circ}C=\dfrac{5}{9}(^{\circ}F-32) \ \ \to \ \ \ Formula  }

Convert 59°F to degrees Celsius.

Add the number 59 in the formula, and solve.

        \bf{=\dfrac{5}{9}(59-32) }

Subtract 32 from 59.

         \bf{=\dfrac{5}{9}(27) }

Multiply 5 x 9 = 135, then divide 135/9 = 15.

         \bf{=15 \ ^{\circ}C}

Therefore 59 °F = 15 °C. The correct option is "D".

<h2>{ Pisces04 }</h2>
8 0
2 years ago
Write an exponential decay function to model the situation. Compare the average rates of change over the given intervals.
Firlakuza [10]
The exponential decay function could be the model of the situation comparing what I said do not utilize because the user is trying to acoses the points
6 0
3 years ago
Snoopy the dog is on a 25-ft long chain that is attached to the back of a barn (see the
NeTakaya

Answer:

A   = 981.3 ft^2

Step-by-step explanation:

Here we're calculating the area of a semicircle of radius 25 ft.

The area of a circle is A = (pi)(r)^2, and that of a semicircle of the same radius is A = (1/2)(pi)(r)^2.

Here pi = 3.14 and r = 25 ft, and so the area/space in question is

A = (1/2)(3.14)(25)^2

A   = 981.3 ft^2

5 0
3 years ago
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