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Mariulka [41]
2 years ago
11

Use the elimination method to solve the system of equations. Choose the

Mathematics
1 answer:
zvonat [6]2 years ago
7 0

Answer:

x = 5

y = 7

Step-by-step explanation:

See the image that I have added to you above to get the whole working.

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X^2 + x^2=6^2 what is x​
nikitadnepr [17]

Answer:

x = ±3 sqrt(2)

Step-by-step explanation:

x^2 + x^2=6^2

Combine like terms

2x^2 = 6^2

Divide each side by 2

x^2 = * 6^2/2

Take the square root of each side

sqrt(x^2) =± sqrt(  6^2/2)

Remember that sqrt(a/b) = ±sqrt(a ) /sqrt(b)

x = ±sqrt(6^2)/sqrt(2)

x = ±6 /sqrt(2)

We do not leave square roots in the denominator, so we multiply the top and bottom by sqrt(2)

x = ±6 /sqrt(2) * sqrt(2)/ sqrt(2)

x = ±6 *sqrt(2) /( sqrt(2)*sqrt(2))

x =  ±6 sqrt(2) /(2)

x = ±3 sqrt(2)

5 0
3 years ago
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What is they y intercept and why?
Olenka [21]

Answer:

The equation of any straight line, called a linear equation, can be written as: y = mx + b, where m is the slope of the line and b is the y-intercept.

Step-by-step explanation:

The y-intercept of this line is the value of y at the point where the line crosses the y axis.

8 0
3 years ago
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A bag contains 3 red marbles and 4 blue marbles. Two marbles are drawn at random without replacement. what is the probability th
Yuliya22 [10]
Probability (first marble red and second marble blue) = (3/7) × (4/6) = 2/7
7 0
3 years ago
What is the value of -9r - 7 when r=2
OLEGan [10]

Answer:

-25

Step-by-step explanation:

Substitute r = 2 in the equation.

-9(2) - 7 = -18 - 7 = -25

4 0
3 years ago
A jet travels 510 miles in 5 hours. At this rate how far could the jet fly in 15 hours? What is the rate of speed of the jet?
adoni [48]

Answer:

Step-by-step explanation:

102

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