y=−2x−4 y=3x+3

1 answer:

8 0

Since there is no question I do not know what is being solved for, but if you’re wondering what the value of x and y equal here’s the explanation.

Set up both equations equal to each other > -2x-4 = 3x+3
Subtract 3 from both sides to get > -2x-7 =3x
Subtract the -2x on both sides to get > -7 = 5x.
Divide both sides by 5 and x = -1.40 or (-1 2/5)

In order to get y value take one of the equation and replace the x in the equation with the value of x you just solved for.
y = -2(-1.4) - 4
multiply the number in the parenthesis and the -2 and you get > y = 2.8 - 4
subtract the two and y = 1.2

x = -1.4 (-1 2/5)
y = 1.2 (1 1/5)

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I NEED HELP ASAP PLEASEEEE

zhuklara [117]

Answer:

$(f-g)(x)=x^2-6x+5$ dom: (-∞,∞)

$(\frac{f}{g})(x)=x-7+\frac{7}{x+2}$ dom: (–∞,–2)u(–2,∞)

Step-by-step explanation:

$(f-g)(x)=f(x)-g(x)=(x^2-5x+7)-(x+2)$ *distribute the negative sign into (x+2)!

$x^2-5x+7-x-2\\x^2-6x+5$

a parabola (anything that begins with $x^2$ ) will have a domain of (-∞,∞) or all real numbers!!

$(\frac{f}{g} )(x)= \frac{x^2-5x+7}{x+2}$ use synthetic division to divide (the attached picture)

domain: Because the graph is not continuous, you have to write the domains on both sides of the asymptote which is (-∞,-2)u(-2,∞)

<u>synthetic division:</u>

1. take the divisor (x+2) and solve for x. x= –2 this goes in the top left corner

2. write the numbers AND their signs on the top row. if there is no number and just the variable (like $x^2$ ) just write 1.

3. the first number gets pulled down

4. multiply -2 by 1 and subtract it from –5. (-5-2= -7)

multiply -2 by -7 and add that to the next number in the top row which is -7. (-7 + 14=7)

5. the first number in the bottom row of numbers is the first number in the answer but with one less exponent than the dividend. **write 1 as x**

6. the last number in the bottom row, if it is not 0, is a remainder. write it as that number over the divisor. in this case the remainder is 7. so write it as $\frac{7}{x+2}$

4 0

2 years ago

Using the standard 28/36 guidelines, what is the maximum mortgage payment allowed for someone with an annual salary of $60,750?

Anna11 [10]

$\frac{28}{36}$ rule says that 28 % of your total income should be spent on Housing finances and 36 % of your gross total income should be spend for Debts.