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GarryVolchara [31]
2 years ago
8

What is the opposite of the opposite of the number located at point a? ght

Mathematics
1 answer:
den301095 [7]2 years ago
5 0
Its c (9) because the opposite of -9 is 9
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The diagram shows two right-angled triangles. Calculate the value of x.
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52° would be the value of x
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Determine the period.
dimulka [17.4K]

Answer:

4

Step-by-step explanation:

The period is the length of one cycle.

By cycle, I mean the smallest piece that can be traced and copied over and over to form the whole graph. If you notice the graph starts at x=0 and the curve makes a complete cycle by x=4. The cycle starts over again at x=4 and ends at x=8. I hope you are seeing the graph looks exactly the same from x=0 to x=4 as x=4 to x=8.

The length of one cycle of this graph is 4.

Please let me know if you have further questions about this question.

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8 0
3 years ago
Can you guys please do both with the work please and thank you if you actually do it
salantis [7]

Answer:

  7.  29 cm

  8.  equation: 61 = (x) +(2x -7) +(3x +2); sides 11, 15, 35

Step-by-step explanation:

7. Let w represent the width. The length is 3 less than twice the width, so the length is 2w-3. The perimeter is given by the formula ...

  P = 2(L+W)

Substituting the known values, we have ...

  90 = 2((2w-3) +w)

  45 = 3w -3 . . . . . . . . divide by 2

  15 = w - 1 . . . . . . . . . .divide by 3

  16 = w . . . . . . . . . . . . add 1

  L = 2w -3 = 2(16) -3 = 29

The length of the rectangle is 29 cm.

__

8. The equation that should be used is the one that relates the side lengths to the perimeter.

  P = a + b + c . . . . for sides a, b, c

  61 = (x) +(2x -7) +(3x +2)

  61 = 6x -5 . . . . . . collect terms

  66 = 6x . . . . . . . . add 5

  11 = x . . . . . . . . . . divide by 6

Then the side lengths are ...

  a = x = 11

  b = 2x -7 = 2(11) -7 = 15

  c = 3x +2 = 3(11) +2 = 35

_____

<em>Comment on problem 8</em>

You will notice that the side lengths do not satisfy the triangle inequality: the sum of the short sides is not greater than the long side. <em>These side lengths cannot form a triangle</em>. Cute algebra, but <em>bad geometry</em>.

4 0
3 years ago
Write y-5=6(x+1) in standard form and show work plz. Thanks
Nezavi [6.7K]

Answer:

x = (1/6y)+(-11/6)

Step-by-step explanation:

Step 1: Flip the equation.

6x+6=y−5

Step 2: Add -6 to both sides.

6x+6+−6=y−5+−6

6x=y−11

Step 3: Divide both sides by 6.

6x /6 = y−11 /6

x= (1 /6 y)+ (−11 /6)

Answer:

x = (1/6y)+(-11/6)

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