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Harlamova29_29 [7]
2 years ago
12

How to do distributive property with an unknown variable.

Mathematics
1 answer:
kondor19780726 [428]2 years ago
6 0

Answer:

1. Multiply, or distribute, the outer term to the inner terms.

2. Combine like terms.

3. Arrange terms so constants and variables are on opposite sides of the equals sign.

4. Solve the equation and simplify, if needed

Step-by-step explanation:

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An article bought for rs.800 is sold for 5/4 of the cost price. Find the profit percentage​
irina [24]

Answer:

the answer is 25% :D

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3 years ago
What number would you add to complete the square? x^2+14x=0
hjlf
You would need to go in the order of pemdas
7 0
3 years ago
What would the answers to these be?
amm1812

The first equation, 8x - 9y = - 23

Obtain the equation in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = ( \frac{1}{2}, 3) and (x₂, y₂ ) = (- 4, - 1 )

m = \frac{-1-3}{-4-1/2} = (- 4)/- \frac{9}{2} = \frac{8}{9}

partial equation is y = \frac{8}{9} x + c

to find c substitute either of the 2 points into the partial equation

using (- 4, - 1 ), then

- 1 = - \frac{32}{9} + c ⇒ c = \frac{23}{9}

y = \frac{8}{9} x +\frac{23}{9} ← in slope- intercept form

the equation of a line in standard form is

Ax + By = C ( A is a positive integer and B, C are integers )

rearrange the slope- intercept equation into this form

multiply through by 9

9y =  8x + 23 ( subtract 9y and 23 from both sides )

8x - 9y = - 23 in standard form


4 0
3 years ago
Write an equation for the line in slope-intercept form
Serga [27]

Answer:

y=1/4x+5

Step-by-step explanation:

8 0
3 years ago
Please help!!! I don’t understand it at all and I need it ASAP!
Ivenika [448]

9514 1404 393

Answer:

  \textbf{D.}\quad g(x)=\sqrt{x+6}+4

Step-by-step explanation:

A lot of math is about matching patterns.

For example, ...

  g(x) = f(x -h) +k

means g(x) is the function f(x) translated right by h units and up by k units. This will be true for any expression of f(x).

__

In this problem, f(x) = √x. We want to translate it left 6 units (h=-6)*, and up 4 units (k=4).

The notation above means that we will replace x with (x-h) = x+6. and we will add k = 4 to the result.

  f(x) = √x

  g(x) = f(x+6) +4

  g(x) = √(x+6) +4 . . . . . . matches choice D

_____

* Left is the opposite of right, so left 6 units is the opposite of right 6 units. h=6 for <em>right 6 units</em>, so h=-6 for <em>left 6 units</em>. Then x-h = x-(-6) = x+6.

__

<em>Comment on the graph</em>

I find it useful to see a picture with these things. In the attached graphing calculator output, the blue curve is left 6 and up 4 from the red curve. The blue curve is g(x); the red one is f(x).

7 0
3 years ago
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