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Pie
3 years ago
11

-x+4y=24 and -2x+y=-8 as an ordered pair

Mathematics
2 answers:
mezya [45]3 years ago
6 0
(8,8)? I believe sorry if wrong
Stels [109]3 years ago
5 0

Answer: (8,8)

Step-by-step explanation:

First you need to get a x or y by itself.

I choosed to get y by itself since it would be faster.

-2x + y = -8  (first get -2x to the other side so add 2x)

y = -8 + 2x (then you want to insert that to the other equation)

-x + 4( -8 +2x) = 24      ->    -x -32 + 8x = 24   ->   7x -32 = 24

(add 32 to the other side)

7x = 56 (divide 7 to 56 to get x) x = 8

now insert into the other equation

-2( 8 ) + y = -8     ->     -16 + y = -8 ( move -16 to the other side, so add 16)

then you get your answer, y= 8

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A right cylinder has a radius of 2 units and height of 5 units. What is the volume of the cylinder? Round to the nearest tenth.
Free_Kalibri [48]

Hi,

The volume of the cylinder is :

V = π × r^2 × h

V = 3,142 × (2)^2 × 5

V = 62, 8319 cm^3

π : Pi => 3,142

r : radius of the cylinder (2 units).

h : height of the cylinder (5 units).

The base of the cylinder is a circle , so to calculate the area we have to use the formula : area = π × r^2. And to find the volume , we have to multiply the area by the height.

•It was nice to help you, Bellalocc!

8 0
2 years ago
State a true conclusion.
xxTIMURxx [149]

Answer:

The conclusion is "Plane R and Plane S form a line if they intersect."

Step-by-step explanation:

Consider the provided statements.

1) If two planes intersect, their intersection is a line.

2) Plane Rand plane S intersect.

  • If two points lie in a plane, then the line joining them lies in that plane.
  • If two planes intersect, then their intersection is a line.

For better understanding refer the figure:

There are two planes R and S, which intersect at the line l.

Since the given two planes intersect, the using the above fact we can say that their intersection is a line.

Thus, the conclusion is "Plane R and Plane S form a line if they intersect."

3 0
3 years ago
What is 1 1/2 plus 2/3?
belka [17]
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3 0
3 years ago
Read 2 more answers
What is (12-2i) (5+3i) multiplied?
Ilya [14]
= 12*5 + 12*3i - 5*2i - 6i^2    (remember that i^2 = -1) so:-

= 60 +26i - 6*(-1)

= 60 + 26i + 6

= 66 + 26i
5 0
3 years ago
I know the answer is not 6 so does anyone know the answer?<br> * ANSWER ASAP *
aleksklad [387]

Answer:

8

Step-by-step explanation:

Using sine rule,

sin 80° ÷ 10 = sin 50° ÷ x

x = sin 50° ÷ (sin 80° ÷ 10)

= 7.77 --> 8

4 0
2 years ago
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