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Temka [501]
4 years ago
14

Find x y and z in this probelm

Mathematics
1 answer:
marishachu [46]4 years ago
5 0
For the top shape, x = 11, y = 10 and z = 14.

Start with the equation: 11y + 7y = 180 because those two angles are supplementary. Solving that will give you that y = 10.

The angle that is labelled 7y is therefore 70 degrees. We can write the following equation will the 5x because it is corresponding to the 70 degree angle.

5z = 70
z = 14

And we can also write and solve for the x, using the 70 degree angle.
70 + 10x = 180
10x = 110
x = 11

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x + 3 = 2

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3 years ago
Transform the quadratic function defined by y=ax2+bx+c into the form y=a(x-h)2+k 1.Y=x2-6x-3 2.Y=5x2-20x-5
Lana71 [14]

Answer:

<em>1) y = (x-3)²-12</em>

<em>2) y = 5(x-2)²-9 </em>

Step-by-step explanation:

Given the quadratic expressions

y=x²-6x-3

We are to transform it in the form y=ax²+bx+c

y=(x²-6x)-3

Complete the square of the expression in parenthesis

y = (x²-6x + (6/2)² - (6/2)²)-3

y = (x²-6x+3²-3²)-3

y = (x²-6x+9-9)-3

y = (x²-6x+9)-12

y = (x²-3x-3x+9)-12

y = x(x-3)-3(x-3)-12

y = (x-3)(x-3)-12

y = (x-3)²-12

Hence the transformation is y = (x-3)²-12 where a = 1 and k = -12

For the quadratic equation

y=(5x²-20x)-5

y = 5(x²-4x)- 5

Complete the square of the expression in parenthesis

y = 5(x²-4x+4-4)- 5

y = 5(x²-4x+4)-9

y = 5(x-2)²-9

<em>Hence the transformation is y = 5(x-2)²-9 where a = 5 and k = -9</em>

7 0
3 years ago
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irga5000 [103]

Answer:

...

Step-by-step explanation:

can you show us the options of the drop-down menus?

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4 years ago
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