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2 years ago

If x + y = x, show that x = 1.

Mathematics

1 answer:

Alexxx [7]2 years ago

7 0

So first you would go 1+y=1 and the go 1+0=1

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What is the solution of the equation over the complex numbers

denis-greek [22]

Answer:

$2i\sqrt{3}$

$-2i\sqrt{3}$

Step-by-step explanation:

$x^2 + 12$

First set the equation to 0

$x^2 + 12$

$x^2 + 12 = 0$

Second, get the 12 on the right side of the equal sign by adding a -12 to each side

$x^2 + 12 = 0$

$x^2 + 12 + (-12) = 0 -12$

$x^2 = -12$

Square root both sides of the equal sign.

$x^2 = -12$

$\sqrt{x^2} = \sqrt{-12}$

Take the square root on left sides of the equal sign.

$\sqrt{x^2} = \sqrt{-12}$

$x = \sqrt{-12}$

Take the square root on the right side of the equal sign. Remember $\sqrt{-1} = i$

$x = \sqrt{-12}$

$x = \sqrt{4}*\sqrt{-1}\sqrt{3}}$

$x = 2i\sqrt{3}$

AND

$x = -2i\sqrt{3}$

8 0

3 years ago

the probability of rain is 40% on Friday, 60% on Saturday, and 10% on Sunday. What is the probability that it will not rain duri

Kamila [148]

4/10 chance of rain Friday, 6/10 chance Saturday and 1/10 chance Sunday.
That means the chances of it not raining are 6/10 4/10 and 9/10
You multiply these together to get the chances of it not raining.
You get 216/1000 or .216 or 2.16% chance of it not raining

8 0

3 years ago

I need help. trying to solve this.

kkurt [141]

You can use this formula
${x}^{2} + (a + b)x + ab$
a and b are the solutions to the equation

${x}^{2} + ( - \frac{2}{5} + \frac{1}{3} )x + ( - \frac{2}{5} \times \frac{1}{3} ) = 0 \\ {x}^{2} - \frac{1}{15}x - \frac{2}{15} = 0$

8 0

2 years ago

What is the apparent slope of the line graphed below?

Inessa [10]

Answer:

B. -2/5

Step-by-step explanation:

Use the "rise over run method"

Do this by finding two points on the graph, then finding the distance between the two points. First find the vertical distance, then the horizontal. The direction represents whether the slope will be negative or positive. When it goes up, it'll be positive, down=negative. Right=positive, left=negative. Two negatives make a positive, but one positive and one negative make a negative.

4 0

3 years ago

On a graph, points form a curved line. Using the scatterplot, determine the association.

xxMikexx [17]

Answer:

non linear, strong

Step-by-step explanation:

Because it is curved and the points are close together

7 0

3 years ago

If x + y = x, show that x = 1.​

If x + y = x, show that x = 1.