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2 years ago

If y=-3x + 2, find x when y= -13 *

Mathematics

1 answer:

Arturiano [62]2 years ago

7 0

Answer:

x = 5

Step-by-step explanation:

You know what "y" equals, so you just need to insert the value into the equation, then solve for "x".

-13 = -3x + 2

-13 - 2 = -3x

-15 = -3x

5 = x

x = 5

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Write the equation of a possible rational

kondor19780726 [428]

Answer:

The graph has a removable discontinuity at x=-2.5 and asymptoe at x=2, and passes through (6,-3)

Step-by-step explanation:

A rational equation is a equation where

$\frac{p(x)}{q(x)}$

where both are polynomials and q(x) can't equal zero.

1. Discovering asymptotes. We need a asymptote at x=2 so we need a binomial factor of

$(x - 2)$

in our denomiator.

So right now we have

$\frac{p(x)}{(x - 2)}$

2. Removable discontinues. This occurs when we have have the same binomial factor in both the numerator and denomiator.

We can model -2.5 as

$(2x + 5)$

So we have as of right now.

$\frac{(2x + 5)}{(x - 2)(2x + 5)}$

Now let see if this passes throught point (6,-3).

$\frac{(2x + 5)}{(x - 2)(2x + 5)} = y$

$\frac{(17)}{68} = \frac{1}{4}$

So this doesn't pass through -3 so we need another term in the numerator that will make 6,-3 apart of this graph.

If we have a variable r, in the numerator that will make this applicable, we would get

$\frac{(2x + 5)r}{(2x + 5)(x - 2)} = - 3$

Plug in 6 for the x values.

$\frac{17r}{4(17)} = - 3$

$\frac{r}{4} = - 3$

$r = - 12$

So our rational equation will be

$\frac{ - 12(2x + 5)}{(2x + 5)(x - 2)}$

$\frac{ - 24x - 60}{2 {x}^{2} + x - 10}$

We can prove this by graphing

5 0

2 years ago

What number u satisfies the equation sqrt{100u-100}=100?

kifflom [539]

The answer is 101
100 squared is 10,000
Then form an equation
100u-100=10,000
+100 +100
100u=10,100
divide by 100 on both sides
and you get 101 as the answer

6 0

2 years ago

Read 2 more answers

Select all that apply. Which of the following are true? Fractions and ratios cannot have zero in the denominator. Fractions and

maw [93]

Answer:

True statements:

1. Fractions and ratios cannot have zero in the denominator.

3. Some fractions and ratios can be written as mixed numbers. Fractions and ratios can be simplified the same way.

Step-by-step explanation:

1. Fractions and ratios cannot have zero in the denominator: True.

Reason- If the denominator in any fraction /ratio is zero, then it means the whole fraction will be equal to infinity (not-defined value)

2. Fractions and ratios are different names for the same thing. False

Reason- A fraction represents a number from the whole of something, in which the denominator represents the total number of equal parts of the whole. But, a ratio represents a comparison between two quantities.

3. Some fractions and ratios can be written as mixed numbers. Fractions and ratios can be simplified the same way. True

Reason-The simplification method can be same but these two are not same quantities.

7 0

3 years ago

Read 2 more answers

I need help please.

vampirchik [111]

Answer:

Step-by-step explanation: Do 9 times 9 times 9 then subtract 52 from it you will get 531,389 :> happy to help!

3 0

2 years ago

0.0508 written in 2 significant figures is?

mojhsa [17]

0.05

0.0008

i think this is what u are talking about right

if not im srry i don't now

5 0

3 years ago