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PIT_PIT [208]
3 years ago
14

Angle x measures 42•. Find measure of angle y.

Mathematics
1 answer:
harina [27]3 years ago
5 0

Answer:

C

Step-by-step explanation:

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K divide by 6 + 8 = 5
VLD [36.1K]

Answer:

k= -18

Step-by-step explanation:

5 = (k/6) + 8 so 5-8 = k/6

-3=k/6 then -3 multiplied by 6 = k which is -18 = k

-18/6= -3

-3+8=5

5 0
3 years ago
Which equation is the inverse of y = 9x2 - 4?
m_a_m_a [10]

Answer:

The inverse will be:

y' = \frac{\sqrt{x+4}}{3}

Step-by-step explanation:

In order to find the inverse of the equation, we do a variable change, since we are finding the inverse, :

f(x)  = 9x^{2} - 4

y = 9x^{2} - 4

x = 9y' ^{2} - 4

Now solve for y'.

First add 4 in both sides of the equation and change to the left y'.

x + 4= 9y'^{2} - 4+4

9y'^{2} = x + 4

Second divide by 9

9y'^{2}/9 = (x + 4)/9

y'^{2} = (x + 4)/9

Now you will have to clear y, with the square root.

[tex]y'^{\frac{2}{2}} = \sqrt{x + 4}  / \sqrt{9}[/tex] =

Simplifying terms

y' = \frac{\sqrt{x+4}}{3}

f^{-1}(x)  = \frac{\sqrt{x+4}}{3}

You can check the answer by doing the evaluation of the following equation:

(f o f^{-1} ) (x)

substitute the equation for y' or inverse function f^{-1}

f(\frac{\sqrt{x+4} }{3})

Now substitue the value into f(x)

You will have

= 9(\frac{\sqrt{x+4} }{3}} )^{2}  - 4\\\\Solving\\\\9(\frac{{x+4} }{9}} )  - 4

=x

5 0
3 years ago
Complete the following sentence.<br><br> The slope of the graph of y = x is
Mrac [35]

Answer:

The slope of y=x is 1

Step-by-step explanation:

Slope = 1

7 0
3 years ago
25 pointssss !!!!!!!!!
Reptile [31]

Answer:

Dion needs to add 10% of the solution

4 0
2 years ago
Archie and his friends went scuba diving. Each person recorded his dive depth. If land represents 0, which dive depth is closest
Mariana [72]
-20 feet



that would be the number closest to 0
4 0
2 years ago
Read 2 more answers
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