Pls help me with #'s 13 and #15 with work pls so I know how u got it
Pls help me with #'s 13 and #15 with work - 1

Answers

Answer 1
Answer: 13. linear functions alwasys have x^1 as highest exonent for placeholder
we see that in D, we have 6x^2 which is quadratic, not linear

D is ansre

15. isolate y
emember you can do anything to an equaiton as long as you do it to both sides

12x-4y=20
add 4y to both sides
12x+4y-4y=20+4y
12x+0=4y+20
12x=4y+20
minus 20 both sides
12x-20=4y+20-20
12x-20=4y+0
12x-20=4y
divide both sides by 4
12/4x-20/4=4/4y
3x-5=1y
3x-5=y
y=3x-5
why is it not listed, there is an error in the question, report the erre

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The blanco family is deciding between two lawn care services. Evergreen charges a $49 startup fee, plus $29 per month. Great Grass charges a $25 starup fee, plus $37 per month. In how many months will both lawn-care services cost the same? What will the cost be?

Answers

In three months their money will be equal and the amount is $136.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

The solution of an equation is the set of all values that, when substituted for unknowns, make an equation true.

Given that, the Blanco family is deciding between two lawn care services.

Evergreen charges a $49 startup fee, plus $29 per month.

Let the number of months be x.

Here, 49+29x -----(i)

Great Grass charges a $25 starup fee, plus $37 per month.

So, 25+37x ------(ii)

Both lawn-care services cost the same

Equation (i) and (ii) are equal, we get

49+29x=25+37x

37x-29x=49-25

8x=24

x=3

Now, 49+29x=$136

25+37x=$136

Therefore, in three months their money will be equal and the amount is $136.

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Solve the quadratic equation for x. What is one of the roots? (x + 6)^2 = 49

Answers

The value of one of the roots x of the quadratic equation(x + 6)^2 = 49 is 1.

A polynomial is an expression with nonnegative coefficients and consists of constants, variables, and operators ( addition, subtraction multiplication, and division)The highest power of the polynomial is called the degree of the polynomial. The polynomial whose degree is 2 is called a quadratic polynomial.

For example; 3x^2- 5x+9=0, here the degree of the polynomial is 2, so it is a quadratic polynomial.

The roots of the equation can be calculated as:

( x+6)^2 = 49\n( x+6)^2 = (7)^2\n x+6 = 7\nx = 7-6\nx = 1

Thus, one of the roots of the equation  (x + 6)^2 = 49 is 1.

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Answer:

x equals -1 and it also equals -13. They are both considered the roots.

Step-by-step

  1. (x+6)^2= 49    to get rid of the exponent square root each side of the equation.
  2. (x+6)= √49     Find square root of 49.
  3. (x+6)= ±7        It could be positive 7 or -7 because both of them squared equal 49. Now solve for each possible equation, (x+6)= 7 and  (x+6)=-7.
  4. (x+6)=7  subtract 6 from each side.
  5. x= 1
  6. (x+6)=-7  Subtract 6 from each side.
  7. x=-13
  8. So the answers are -13 and 1.

Is the answer is C please help!

Answers

Answer:

YE sit is

Step-by-step explanation:

Help me in my hw constructed reonse I nned it today

75 points, please help

Answers

∛686x^4y^7

= ∛[(7xy^2)^3 * 2xy]

= 7xy^2 ∛(2xy)

Answer is the first one  7xy^2 ∛(2xy)

Answer:

Answer is the first one  7xy^2 ∛(2xy)

Step-by-step explanation:

Help??? What is 3x+5x=67y?

Answers

All you have to do is combine 3x and 5x to = 8x. You can't combine 8x and 67y because they have different variables. so it's 8x+67y. 
3x + 5x = 67y
8x = 67y
this will be the final answer you can't divide with those two numbers because they don't have the same verbal.

i hope it helps.

Solve the equation: 2 * x-3 = 25, x =? (digit answer):

Answers

is your answer for x

2(x) - 3 = 25

Note the equal sign, what you do to one side you do to the other. Do the opposite of PEMDAS.

First, add 3 to both sides

2x - 3 (+3) = 25 (+3)

2x = 25 + 3

2x = 28

Isolate the x. Divide 2 from both sides

(2x)/2 = (28)/2

x = 28/2

x = 14

is your answer for x

~

Final answer:

The solution to the equation 2 * x - 3 = 25 is x = 14. This is achieved by first adding 3 to both sides of the equation to isolate the term with x, and then dividing both sides of the equation by 2.

Explanation:

To solve the equation 2 * x - 3 = 25 for x, you should start by adding 3 to both sides of the equation to isolate the term with x. This will give us 2 * x = 28. Then, you divide both sides of the equation by 2 to solve for x. This results in x = 14. So, the solution to the equation 2 * x - 3 = 25 is x = 14.

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