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4 years ago

Does anyone how to do system equations but with 3 of them?

Mathematics

1 answer:

Serhud [2]4 years ago

8 0

Answer:

is all the equations together or you need to solve each seperately?

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Complete the equation of the line through (-10,-7) and (-5, -9).<br>Use exact numbers,

steposvetlana [31]

Answer:

$y=\frac{-5}{2}*x + 18$

Step-by-step explanation:

A line in 2-dimensional space has the following general equation:

$y=m*x+b$

Where m is the slope of the line, and b just a number

the slope can be obtaine using th following formula:

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

The point 2 is the one with the smallest value for x, that is (-10,-7) and the Point 1 is any other that belongs to the line, in this case, (-5,-9)

$m=\frac{-5 - (-10) }{-9 - (-7)}$

Resulting that $\frac{-5}{2}$

To find the other term we can use any other point, I prefer us the first one so...

We have the following equation:

$-7=\frac{-5}{2}*(-10)+b$

Resulting that b=18

I just have to eval the point (-10,-7) in the equation stated at the beginning knowin that m was calculated previously.

8 0

3 years ago

Read 2 more answers

The graph shown is a translation of the graph of f(x)=x^2. Write the function in vertex form.

Gnesinka [82]

$\sf \longrightarrow \: f(x) = {x}^{2}$

Write the parent function in the standard form I.e.

$\boxed{ \tt \:y =a(x - h) \times 2 + k }$

Where,

a = 1
h = 0
k = 0

$\sf \longrightarrow \:y= 1(x - 0)^{2} \times 2 + 0$

$\sf \longrightarrow \: y = (x - 0) ^{2} \times 2 + 0$

$\sf \longrightarrow \: y = {x}^{2} \times 2$

$\sf \longrightarrow \: y = 2{x}^{2}$

4 0

3 years ago

At Prairie Middle School, 120 of the 450 students ride their bikes to school each day. Which fraction represents the ratio of st

stellarik [79]

I think it might be d.)

6 0

3 years ago

Please solve 5q+6=2q-2+q.

son4ous [18]

Answer:

q= -4

Step-by-step explanation:

$5q + 6 = 2 q- 2 + q$

Collect like terms and simplify

$5q - 2q - q = - 2 - 6 \\ 2q = - 8$

Divide both sides of the equation by 2

$\frac{2q}{2} = \frac{ - 8}{2} \\$

Simplify

$q = - 4$

4 0

3 years ago

Read 2 more answers

What is the average of 1/4 and 6/18

galina1969 [7]

Answer:

7/24

Step-by-step explanation:

(1/4+6/18)/2=7/24

8 0

3 years ago