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klasskru [66]
3 years ago
15

40 points plz I need help

Mathematics
1 answer:
Kitty [74]3 years ago
4 0

Answer:

-103/6 = 17 1/6

Step-by-step explanation:

-4 1/15 = -61/15

13 1/10=131/10

-61/15*2/2=-122/30

131/10*3/3=393/30

-122/30-393/30=-515/30=-103/6

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The equation y minus 3 = negative 2 (x + 5) is written in point-slope form. What is the y-intercept of the line?
djverab [1.8K]

Answer:

y=-7

Step-by-step explanation:

y-3=-2(x+5)

distribute the -2 into the ( )

y -3= -2x -10

cancel to -2x

y- 3 = -2(0) -10

y-3 = -10

  +3   +3

y= -7

Hope this helps!!

8 0
3 years ago
Read 2 more answers
In a regular triangle ABC with side 1, two squares MNKL, RKPT are drawn such that points M, L, R are on the side AC (the order o
Orlov [11]

Answer:

  • MN = (21 -6√3)/37 ≈ 0.286694
  • RK = (14√3 -12)/37 ≈ 0.331046

Step-by-step explanation:

In the attached figure, we have defined LM to be length x. Then the other lengths on side AC are ...

  AM = LR = x/√3

  RC = (2/√3)RK = (2/√3)(2/√3)x = 4/3x

Then the sum of lengths along AC is ...

  AC = AM +ML +LR +RC

  1 = x(1/√3 +1 +1/√3 +4/3) = x(7/3 +2/√3) = x(7√3 +6)/(3√3)

Then the value of x is ...

  x=\dfrac{3\sqrt{3}}{7\sqrt{3}+6}=\dfrac{3\sqrt{3}(7\sqrt{3}-6)}{(7\sqrt{3})^2-6^2}=\dfrac{3(21-6\sqrt{3})}{3(49-12)}\\\\\boxed{MN=\dfrac{21-6\sqrt{3}}{37}}\\\\RK=\dfrac{2\sqrt{3}}{3}MN\\\\\boxed{RK=\dfrac{14\sqrt{3}-12}{37}}

8 0
3 years ago
What is the value of X
zhannawk [14.2K]

Answer:

27=x

Step-by-step explanation:

We can use the triangle angle bisector theorem

x+8            2x-5

--------- = ------------

10                14

Using cross products

14(x+8) = 10 (2x-5)

Distribute

14x +112 = 20x -50

Subtract 14x from each side

14x-14x +112 = 20x-14x -50

112 = 6x-50

Add 50 to each side

112+50 = 6x-50+50

162 = 6x

Divide by 6

162/6 = 6x/6

27=x

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3 years ago
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Answer:

Step-by-step explanation:

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