Ask question

Ask question

All categories

uranmaximum [27]

3 years ago

9

4x+8y=-4 -5x + 3y=-21 (3-2)

1 answer:

cricket20 [7]3 years ago

5 0

Answer:

x + 2y + 1 = 0

-5x+3y-21 = 0

(3-2) = 1

You might be interested in

Write the equation

Shkiper50 [21]

$a)\ the\ slope-intercept\ form:\ y=mx+b\\--------------------------\\m=\frac{2}{3}\Rightarrow y=\frac{2}{3}x+b\\\\the\ point\ (-3;\ 6)\Rightarrow \frac{2}{3}\times(-3)+b=6\\\\-2+b=6\ \ \ \ \ |add\ 2\ to\ both\ sides\\\\b=8\\\\\boxed{y=\frac{2}{3}x+8}$

$b)\ the\ two-points\ formula:y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\\-----------------------------\\the\ points:\ (3;-1);\ (5;\ 7)\\\\y-(-1)=\frac{7-(-1)}{5-3}(x-3)\\\\y+1=\frac{7+1}{2}(x-3)\\\\y+1=\frac{8}{2}(x-3)\\\\y+1=4(x-3)\\\\y+1=4x-12\ \ \ \ \ |subtract\ 1\ from\ both\ sides\\\\\boxed{y=4x-13}$

3 0

3 years ago

Read 2 more answers

The circumference for a round pool that has a diameter of 16 feet would be?

Lemur [1.5K]

Answer:

50.266 or 50.27

Step-by-step explanation:

6 0

2 years ago

How many times greater than √2 is√32?<br><br> Can anybody help out here?

Anarel [89]

Answer:

4

Step-by-step explanation:

Root32= 4×root2

Root32 is 4 times greater than root2

Pls mark as brainliest

5 0

2 years ago

Read 2 more answers

What are the focus and directrix of the parabola that is the graph of the function f(x)=x²?

Hitman42 [59]

Answer:

Step-by-step explanation:

Given

$y=x^2$

comparing it with standard equation $x^2=4ay$

so 4a=1

$a=\frac{1}{4}$

so Focus of parabola is (0,0)

directrix

y=-a

here $a=\frac{1}{4}$

$y=-\frac{1}{4}$

5 0

3 years ago

Which relation is a function?

Tatiana [17]

Of the provided graphs, the second would be the correct answer.

Functions occur when the input only has one possible output (though the output can be recieved through multiple inputs)

3 0

3 years ago

Read 2 more answers