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3 years ago

N + 16 = 9 Please help me need explanation

Mathematics

2 answers:

e-lub [12.9K]3 years ago

6 0

Answer: n = -7

Step-by-step explanation: Move all terms not containing n to the right side of the equation.

Hope this helps you out! ☺

vlabodo [156]3 years ago

5 0

Answer:

n = -7

Step-by-step explanation:

You do cancels and removal out by inverse operation to find the answer.

Step 1: Write out the equation.

n+16=9

Step 2: Subtract both sides by 16 to cancel out the positive 16.

n +16 (-16) = 9 -16

Step 3: After +16-16, 9-16, you shall not have any more operations like (+, -, *, or / )

n = -7

*Note:

n = -7.

2n = -14.

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the straight line L has the equation 4y=5x+3. Point A has the coordinates (3,-2) Find the equation of the line straight line tha

Aleonysh [2.5K]

Answer:

y = - $\frac{4}{5}$ x + $\frac{2}{5}$

Step-by-step explanation:

The equation of a line in slope- intercept form is

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

Rearrange 4y = 5x + 3 into this form by dividing the 3 terms by 4

y = $\frac{5}{4}$ x + $\frac{3}{4}$ ← in slope- intercept form

with slope m = $\frac{5}{4}$

Given a line with slope m then the slope of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$ = - $\frac{1}{\frac{5}{4} }$ = - $\frac{4}{5}$ , thus

y = - $\frac{4}{5}$ x + c ← is the partial equation

To find c substitute (3, - 2) into the partial equation

- 2 = - $\frac{12}{5}$ + c ⇒ c = - 2 + $\frac{12}{5}$ = $\frac{2}{5}$

y = - $\frac{4}{5}$ x + $\frac{2}{5}$ ← equation of perpendicular line

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2 years ago

Find the equation of the line that passes through point (7,5) and (-9,5)

Papessa [141]

Answer:

y = 5

Step-by-step explanation:

Calculate the slope m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (7, 5) and (x₂, y₂ ) = (- 9, 5)

m = $\frac{5-5}{-9-7}$ = $\frac{0}{-16}$ = 0

This means the line is horizontal and parallel to the x- axis with equation

y = c

where c is the value of the y- coordinates the line passes through.

The line passes through (7, 5) and (- 9, 5) with y- coordinates 5, thus

y = 5 ← equation of line

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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astraxan [27]

Answer:

y = 0.8x - 3

Step-by-step explanation:

See attached screenshot solution using Desmos