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3 years ago

What is the solution to | X-13|< 18?

Mathematics

1 answer:

andrew-mc [135]3 years ago

4 0

Answer: X ∈ (-5, 31)

Step-by-step explanation:

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(2a+b) (a-b) + (2a-b) (a+b)

yanalaym [24]

Answer: 4a^2-2b^2 (I think this is right)

Step-by-step explanation:

Using the order of operations I started by multiplying both of the sides separately. The left side of the equation becomes 2a^2-b^2-ab while the right becomes 2a^2-b^2+ab. Then I put the sides together to add them and after combining like terms it becomes 4a^2-2b^2.

8 0

2 years ago

Joe is preparing 18 hot dogs for his party. However, Joe only has 12 hot dog buns. How many more hot dog buns does Joe need

fredd [130]

You need 6 more. 18-12=6.

7 0

3 years ago

What is the equation of the line described below written in slope-intercept form the line passing through the point (-1,5) and p

gregori [183]

The correct answer is y=-x+4

Further explanation:

Given equation of line is:

$x+y = 10$

Comparing it with the standard point-slope form

$y = mx+b$

We get

y = -x+10

m = -1

As the new line is parallel to given line it will also have m=-1 as slope of two parallel lines is equal

For finding b, we will put the point and value of m in standard form

$y = mx+b\\5 = (-1)(-1) + b\\5 = 1+b\\5-1 = b\\b=4$

Hence the equation will be:

$y = (-1)x+4\\y = -x+4$

The correct answer is y=-x+4

Keywords: Slope, Equation of line, Point-slope form

Learn more about Point-slope form of equation of line at:

#LearnwithBrainly

4 0

3 years ago

(-2,0) and (3,4) slope=1/3 and (2,4) SOLVE EQUATIONS FOR THEM PLEASE

andrew11 [14]

Answer: $a)\quad y=\dfrac{4}{5}x+\dfrac{8}{5}$ $b)\quad y=\dfrac{1}{3}x+\dfrac{10}{3}$

Step-by-step explanation:

Use the Slope formula: $m=\dfrac{y_2-y_1}{x_2-x_1}$

and the Point-Slope formula: y - y₁ = m(x - x₁)

a) (-2, 0) and (3, 4)

$m=\dfrac{0-4}{-2-3}\quad =\dfrac{-4}{-5}\quad =\dfrac{4}{5}$

Let (x₁, y₁) = (-2, 0)

y - y₁ = m(x - x₁)

$y-0=\dfrac{4}{5}\bigg(x-(-2)\bigg)\\\\\\y\quad =\dfrac{4}{5}\bigg(x+2\bigg)\\\\\\\large\boxed{y\quad =\dfrac{4}{5}x+\dfrac{8}{5}}$

b) m = 1/3 (x₁, y₁) = (2, 4)

y - y₁ = m(x - x₁)

$y-4=\dfrac{1}{3}\bigg(x-2\bigg)\\\\\\y-4 =\dfrac{1}{3}x-\dfrac{2}{3}\\\\\\y\quad \ =\dfrac{1}{3}x-\dfrac{2}{3}+\dfrac{12}{3}\\\\\\\large\boxed{y\quad =\dfrac{1}{3}x+\dfrac{10}{3}}$

7 0

4 years ago

I want answer for this quiz question

damaskus [11]

Answer:

ummm since when did they add letters into math we ain't learning the alphabet it's math! like what

5 0

2 years ago