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3 years ago

If two lines are parrallel do they have the same slope

Mathematics

2 answers:

victus00 [196]3 years ago

6 0

Answer:

no i dont think so becuse they can still be angeled in all diffrent directions

Step-by-step explanation:

zvonat [6]3 years ago

3 0

Yes, any two parallel lines have the same slope.

For example, graphing out y = 2x+5 and y = 2x+7 will produce parallel lines (both lines have a slope of 2). The two lines will never cross. Algebraically we can solve this system of equations as follows:

y = 2x+5 ... start with the first equation

2x+7 = 2x+5 ... replace y with 2x+7

2x+7-2x = 2x+5-2x .... subtract 2x from both sides

2x-2x+7 = 2x-2x+5

0x+7 = 0x+5

0+7 = 0+5

7 = 5 ... we have a contradiction and false statement here

Because of the false equation in the last line, the original system mentioned above does not have any solutions. A solution to a system is one where the two lines cross.

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Will give brainliest, thanks, and 5 stars! LOTS OF POINTS! 50 POINTS!

lubasha [3.4K]

Answer in order:

False

True

False

True

Step-by-step explanation:

All of the solutions to the equation $3x^2 - 12 = 0$ are x = 12 and x = -12

Solve:

Common factor - $3(x^2-4)=0$

Divide both sides

$x^2-4=0$

Use the quadratic formula

$x=\sqrt{4,x}=\sqrt{-4$

x = 2, x = -2

Thus, This is false..

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There are two unique solutions to the equations (x-3)^2 = 16

one variable in matrix = one possible value.

Therefore, x = 7, x = -1

Hence this is True

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The solutions for the equation 2(x-3)^2-18 = 0 are x = 6 and x = 0

$2x^3-18x^2+54x-72=0$

$x=5.080084$

Hence this is false

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The solutions for the equation 2(x-5)^2-8=0 are x = 7 and x = -7

Add both sides by 8

2(x-5)^2-8+8=0+8

2(x-5)^2=8

(x-5)^2=4

x = 7, x = 3

Hence, this is false

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The solutions for the equation (x + 3)^2-25 = -8 are x = 2 and x = -8

$(x+3)^2=17$

$x=\sqrt{17-3,}=-\sqrt{17}-3$

Hence this is false.

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The solutions for the equation 2(2x-1)^2=18 are x = 5 and x = -4

$(2x-1)^2=9$

x=2, x = -1

Hence this is false.

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The only solution for equation (2x-1)^2-49=0 is x = 4

$(2x-1)^2=49$

x = 4, x = -3

Hence, this is false

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The solutions for the equation 3(x+2)^2 - 3 = 0 are x = -3 and x = -1

$3(x+2)^2=3$

$(x+2)^2=1$

x = -1, x = -3

Hence, this is true

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The solutions for the equation 5x^2 - 180 = 0 are x = 6 and x = -6

Add 180 to both sides

$5x^2-180+180=0+180$

$5x^2 = 180$

$x^2 = 36$

$x=\sqrt{36},x=-\sqrt{36}$

x = 6, x = -6

Hence, this is true.

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[RevyBreeze]

7 0

3 years ago

Determine if the sequence below is arithmetic or geometric and determine the common difference ratio in simplest form. 11,7,3

HACTEHA [7]

The sequence is Arithmetic

d = -4

4 0

3 years ago

Can someone please help me with this

CaHeK987 [17]

Alright!

To solve, all we need to do is subtract the area of the inner circle from the arear of the outer circle.

But first, we need to find the area of both

Key equation: πr²

π = 3.14

Inner cirle area = π13²

π13² = 530.66

Outer cirle area = π21²

I got 21 by adding 8 and 13: both added together makes the radius of the larger circle

π21² = 1,385.74

Now let's subtract.

1,385.74 - 530.66 = 855.08

The area of the blue is = 855.08 yards²

_________________________________________________

Part 2:

Hexagon with 6cm sides and an apothem of $3\sqrt{3} cm$

The answer is C. 93.53

6 0

4 years ago

Joe has been riding his bicycle at a speed of 12 mph and has gone 48 miles. How long has he been riding?

zimovet [89]

Answer:

4 Hours

Step-by-step explanation:

hope that helped

8 0

3 years ago

Read 2 more answers

Can some one please help? Simplify the equation shown in the photo.

Kobotan [32]

Answer:

9√3- ^5√9

you would need to write in exponential form

4 0

4 years ago