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ElenaW [278]
4 years ago
10

Use the elimination method to solve the system of equations. Choose the correct ordered pair. 

Mathematics
2 answers:
MrRissso [65]4 years ago
5 0
Use elimination to solve by cancelling the ys
Mashcka [7]4 years ago
3 0
8x - y = 54
8x + 2y = 60

subtracting, we get -3y = -6
y = 2
x = 7

Answer is (c) (7,2)
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Find the xx-intercept of each line defined below and compare their values.
alexandr1967 [171]

Answer:

\displaystyle greater\:than \\ Line\:B: [-6, 0] \\ Line\:A: [2, 0]

Step-by-step explanation:

The x-intercept of Line B is already given to you because it is where the graph intersects the x-axis.

Now, to get the x-intercept of Line A, plug 0 in for <em>y</em><em> </em>to get this:

0 = −2x + 4

- 4 - 4

_____________

\displaystyle \frac{-4}{-2} = \frac{-2x}{-2} \\ \\ 2 = x

So, the x-intercept of Line A is \displaystyle [2, 0],and since 2 is greater than −6, <em>greater than</em> would be your answer.

I am joyous to assist you anytime.

5 0
4 years ago
Find the measure of one interior angle for the following regular polygon
shusha [124]

Answer:

Step-by-step explanation:

I am assuming that by "interior" angle you do not mean the central angle.

This is a 10-sided polygon, a decagon. That means that there are 10 triangles that can extend from the center, with their sides being equal to the radii of the decagon. If we extract one of these triangles we can find what the interior angle is. The vertex angle measures 360/10 which is 36.

Split this triangle in half from the vertex to the base, creating a right triangle. The vertex angle is also split in half, making this angle (the vertex angle is the one at the top of the triangle) 18 degrees. We already know that one angle inside this right triangle is 90 (definition of a right triangle) and to find the other one, we apply the Triangle Angle-Sum Theorem:

180 - 18 - 90 = 72 degrees. That is the measure of the base angle that is NOT the right angle, obviously.

4 0
3 years ago
A system of inequalities is graphed on the coordinate grid. Which symbol could be written in both circles in order to represent
Vlad1618 [11]
Its the third answer
8 0
3 years ago
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Find the areas of these parallelograms, drawn on a centimetre grid.<br> b)<br> a)
Semenov [28]

Answer:

a-16cm

b-12cm if not iwill look again

Step-by-step explanation:

5 0
3 years ago
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A movie theater sells out all 200 seats for a midnight movie screening at $12 per ticket. The theater's total revenue that night
ss7ja [257]
It could probably be B or A
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