3 years ago

1+4=5 2+5=12 3+6=21 8+11=?

1 answer:

3 0

40. This is because:
1+4= 5.
2+5= 7. Now you must take the 5 from the previous answer and add it to your new answer, which then gives you 12.
Now 3+6=9. Take 12 and add it to 9, which will give you 21. Follow the pattern to get the next answer, which is 40.

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H(x) = 3х – 4<br> What is h(6)?

xeze [42]

Answer:

Step-by-step explanation:

h(6) means what is the value of h(x) when x is 6.

The value given for h(x) is 3x-4.

So we need to evaluate the expression 3x-4 for x=6.

Replace x with 6: 3(6)-4

Now perform order of operations.

3(6)-4

18-4

8 0

3 years ago

Given a parabola with an equation y^2=6x, find the directrix and determine if the parabola opens left or right

Fynjy0 [20]

The parabola is y² = 6x

This defines a parabola with its vertex at the origin (0,0).
When the equation is compared with y² = 4ax, then
4a = 6
a = 3/2

Therefore the focus is at
(a, 0) = (3/2, 0)
The directrix is located at
(-a, 0) = (-3/2, 0)
The parabola opens right because a > 0.

Answer:
The directrix is x = - 3/2.
The parabola opens right.