All categories

2 years ago

HELP QUICK!! solve by substitution and show work please

Mathematics

1 answer:

madam [21]2 years ago

7 0

Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:

x= 1, y= -4

You might be interested in

Find the distance between the pair of points: (1,3) and (-6, -6). distance : ?

uysha [10]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{ \sqrt{130} \: \: units}}}}}$

Step-by-step explanation:

Let the points be A and B

Let A ( 1 , 3 ) be ( x₁ , y₁ )and B ( -6 , -6 ) be ( x₂ , y₂ )

Finding the distance between these points

$\boxed{ \sf{distance = \sqrt{ {(x2 - x1)}^{2} + {(y2 - y1)}^{2} } }}$

$\longrightarrow{ \sf{ \sqrt{ {( - 6 - 1)}^{2} + {( - 6 - 3)^{2} } }}}$

$\longrightarrow{ \sf{ \sqrt{ {( - 7)}^{2} + {( - 9)}^{2} } }}$

$\longrightarrow{ \sf{ \sqrt{49 + 81}}}$

$\longrightarrow{ \sf{ \sqrt{130}}}$ units

Hope I helped!

Best regards! :D

6 0

3 years ago

MATH!!! I HAVE NO IDEA HOW TO DO THIS PLEASE SHOW ME THE WORK I WANNA KNOW HOW TO DO THIS FOR THE NEXT QUESTION!!!!

zimovet [89]

<h2>PLEASE MARK BRAINLIEST!</h2>

Answer:

Sorry I'm late!

Step-by-step explanation:

Formula ⇒ $A = \frac{1}{2}bh$

$A = \frac{1}{2}bh$

$A = \frac{1}{2}(5)(7)$

$A = \frac{1}{2}(35)$

$A = 17.5$

<h3>The Area of the face of the triangle is 17.5 in²</h3>

I hope this helps!

- sincerelynini

6 0

3 years ago

Please help I am terrible at algebra

Marina CMI [18]

Answer:

y = (x-0)^2 + (-5) ⇒ y = x^2 - 5

Step-by-step explanation:

The general vertex form of the parabola y = a(x - h)² + k

Where (h,k) is the coordinates of the vertex.

As shown at the graph the vertex of the parabola is the point (0, -5)

So,

y = a(x-0) + (-5)

y = ax^2 - 5

To find substitute with another point from the graph like (1,-4)

So, at x = 1 ⇒ y = -4

-4 = a * 1^2 - 5

a = -4 + 5 = 1

So, the equation of the given parabola is ⇒ y = x^2 - 5

6 0

3 years ago

Instructions: The following is the recorded earthquakes on South Carolina from August, 2016 to February, 2017. Use the data to f

Ratling [72]

Answer:

Step-by-step explanation:

Residual (Round to nearest tenth)1. 7 Answer1. 1 Answer1. 4 Answer0. 7 Answer0. 8 Answer1. 9 Answer1. 7 Answer1. 9 Answer1. 9 Answer1. 1 Answer

6 0

1 year ago

Write the slope-intercept form of the equation of the line that has the same y-intercept as the black line shown and passes thro

Mazyrski [523]

Answer:

y = 0.5x + 2

Step-by-step explanation:

the y-intercept is 2, as shown in the graph

the slope is 0.5. this is because while the x-value goes up by 2, the y-value goes up by one (from 0, 2 to 2, 3).

using the slope formula of rise / run, you get 1/2, which is equal to 0.5

5 0

3 years ago