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3 years ago

Find the solution of the system of equations.

Mathematics

1 answer:

Dima020 [189]3 years ago

5 0

-9 and another number (i dont have paper rn sorry)

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Please I need serious help with this ASAP!!! I will mark brainliest if correct!! Please explain!!!!

svet-max [94.6K]

Hey there!

1.) Mid-Segment Theorem

2.) Mid-Point Theorem

3.) Mid-Point Theorem

4.) Vertical Angles

5.) SAS Postulate

Have a super awesome day! :)

5 0

3 years ago

Can you help me on question 11?!

Karolina [17]

Answer:

Your answer will be B).

Step-by-step explanation:

Hope this helps. Brainliest??

3 0

3 years ago

SOMEONE PLEASE HELP ME ASAP PLEASE!!!

Masja [62]

Answer:

L: y= -4x + 17

Step-by-step explanation:

For a line L to pass through two points, we use the slope formula to calculate the slope, m, where

m = (y2-y1) / (x2-x1)

= (9-1) / (2-4)

= 8 / -2

= -4

Next we use the point slope form to find the line equation:

L: (y-y1) = m (x-x1)

substitute (x1,y1) = (4,1)

L: y-1 = -4 (x-4)

Simplify:

L: y = -4x + 16 + 1

L: y= -4x + 17

Check: substitute (4,1)

y = -4(4)+17 = 1 checks

substitute (2,9)

y = -4(2)+17 = 9 checks

L: y= -4x + 17

3 0

3 years ago

Read 2 more answers

Find the equation for the circle with a diameter whose endpoints are (3,-1) and (-2,-1)

cricket20 [7]

Answer:

The equation for the circle is: $(x-\frac{1}{2} )^2 + y^2 = (\frac{5}{2} )^2$

Step-by-step explanation:

Here, let us assume the two end points of the diameter are:

P (3,-1) and Q (-2,-1)

Now, as we knew diameter is the chord that passer through the center of the circle.

⇒ Mid point of DIAMETER = Center coordinates of the Circle

Let us assume O(x,y) is the center of the line segment PQ.

So, by MID POINT FORMULA:

$(x,y)= (\frac{3 -2}{2} , \frac{-1-1}{2} ) =( \frac{1}{2},\frac{-2}{2}) \\\implies (x,y) =( 0.5 , -1)$

⇒ The center coordinates of the circle = O(0.5,-1) ...... (1)

Now, RADIUS = Half of DIAMETER

Using DISTANCE FORMULA:

$PQ = \sqrt{(3-(-2))^2 + (-1 - (-1))^2} = \sqrt{(5)^2 + 0} = 5$

So, Radius = 5/2 = 2.5 units

Now, the equation of circle with radius r and center coordinate ( h,k) is given as: $(x-h)^2 + (y-k)^2 = r^2$

Substitute r = 2.5 and (h,k) = (0.5,0) we get:

$(x-0.5)^2 + (y-0)^2 = (2.5)^2\\\implies (x-\frac{1}{2} )^2 + y^2 = (\frac{5}{2} )^2$

Hence the equation for the circle is: $(x-\frac{1}{2} )^2 + y^2 = (\frac{5}{2} )^2$

5 0

4 years ago

Hanson brought a new jacket that cost him $139 where the sales tax rate was 6.4%. What was the total amount he paid after taxes?

faltersainse [42]

147.90

Mark brainliest please

Hope this helps you

4 0

3 years ago