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3 years ago

100 POINTS AND BRAINLIEST!! PRE CALC!

Mathematics

1 answer:

Elenna [48]3 years ago

3 0

Refer to the pic above.

Concepts used :

1. Trigonometric Properties

2. Domain limitation

3. assumption

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Simplify the expression 2(-2x+4-5-3)

uysha [10]

Answer:2 (-2x + 4 - 5 - 3)

2(-2x -4)

-4x - 8

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4 years ago

What does the point (8,4) indicate in the terms of the context?

vredina [299]

8 milk cartons for 4 dollars? im sorry if im wrong

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3 years ago

PLEASE HELP ME <br> image attached

FromTheMoon [43]

Your answer is 23

Isolate the radical raise both sides of the equation to its index

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3 years ago

Santa is preparing for a

IrinaVladis [17]

Answer:

Cost of a package of celery = $20

Step-by-step explanation:

Let, x=carrots and y= celery.

So from the given data we get 2 equations

Equation 1]:-

$9x+12y=312$ ------------(for 9 package carrot and 12 package celery)

Equation 2]:-

$1x+3y=68$ ---------------(for 1 package carrot and 3 package celery)

After solving equation 2 we get,

$x=68-3y$ ------------------------(equation 3)

Now substituting equation 3 in equation 1,

$9\times(68-3y)+12y=312$

$612-27y+12y=312$

$612-15y=312$

$612-312=15y$

$300=15y$

∴ $y=\frac{300}{15}$

$y=20$ ------------------(equation 4)

Therefore cost of a package of celery = $20

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4 years ago

Which of the following statements are true about the given rational equation? check all of the boxes that apply. 4 x 6 1 x2 = x

Agata [3.3K]

We can actually see that the statements that are true are:

A. x = 1 is a solution.

C. x = –1 is a solution.

<h3>What is rational equation?</h3>

Rational equation is actually known as an equation that contains at least one fraction. The denominator and numerator are known to be polynomials.

We can see then that:

$\frac{4}{x + 6} + \frac{1}{ {x}^{2} } = \frac{x + 10}{ {x}^{3} + 6 {x}^{2} }$

It's clear that: x ≠ 0 and x ≠ -6.

Looking for the LCM of the left hand side, we will have:

$\frac{4}{x + 6} + \frac{1}{ {x}^{2} } = \frac{4 {x}^{2 } + (x + 6)}{(x + 6) {x}^{2} }$

So, we will see that left hand side and right hand side are equal.

$4 {x}^{2} + x + 6 = x + 10$

$4 {x}^{2} = 10 - 6$

$4 {x}^{2} = 4$

${x}^{2} = 1$

$x = 1$

$x = - 1$

So, we can see that options A and C are correct.

Learn more about rational equation on brainly.com/question/11611235

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2 years ago