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Galina-37 [17]
3 years ago
10

Is y=9x-8 a function

Mathematics
2 answers:
RSB [31]3 years ago
6 0
Yes it is a function
maks197457 [2]3 years ago
3 0
Yes, it is a function
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I neeeddddd helppppp!!!! It’s urgentttttt
pentagon [3]

Answer:

R theta 1 = 20 x

R theta 2 = 11 x  - 6

R ( theta 1 + theta 2) = 31 x - 6     adding equations

R pi = 31 x - 6       since theta 1 + theta 2 = 180 deg

x = (R pi + 6)  / 31

This equation depends only R

If one lets R be one then   x = (pi + 6) / 31

This would give x = .29489 rad for the value of pi is deg

The numerical value of x appears to depend on the value of R

4 0
3 years ago
What are the excluded values v^2 +1 / v^2 -v-6
valentina_108 [34]
The rational expression
\dfrac{v^{2}+1}{v^{2}-v-6}=\dfrac{v^{2}+1}{(v-3)(v+2)}
will be undefined where the denominator is zero. Values of v that make the denominator zero are v=3 and v=-2.

Excluded values of v are -2 and 3.
5 0
4 years ago
I need help with this math problem
klemol [59]

Answer:

x = 15

Step-by-step explanation:

The right angle is formed at at the tangent line and the radius

So to solve for the missing angle we can solve for x using the Pythagorean Theorem

The Pythagorean theorem states that the sum of the two legs squared equal the hypotenuse squared

Knowing this we can create an equation to solve for x

12^2+9^2=x^2

now we solve for x

12^2=144\\9^2=81\\81+144=225\\225=x^2\\\sqrt{225} =15\\\sqrt{x^2} =x\\x=15

So we can conclude that x = 15

6 0
3 years ago
Calculate the area of this composite shape. Hint: The figure is made up of a rectangle and a semi-circle. Use 3.14 for the value
White raven [17]

Answer:ok

Step-by-step explanation:ok

3 0
3 years ago
I could use a little help with this one. i'm rusty.<br> -3(x+2)-7 = 5x + 7
Pie

Answer:

-3(x+2)-7 = 5x + 7

-3x - 6 - 7 = 5x + 7

-3x - 13 = 5x + 7

-20 = 8x

x = -2.5

7 0
3 years ago
Read 2 more answers
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