**Answer:**

30

**Step-by-step explanation:**

A triangle has a total degree of 180. We already have 150(from the 60 and the right angle) 180-150 is 30

**Answer:**

4^-10

**Step-by-step explanation:**

(4^-2)^5

4^-2 x 5

= 4^-10

hope this helped have fun doing school haha

**Answer:**

**Step-by-step explanation: subscribe to my channel plz trying to blow up channel- dav slayer**

Answer:

x² = -16y

Step-by-step explanation:

We are given:

Vertex (0,0)

Directix y = 4

Here we are asked to find the equation of a parabola given the above conditions.

The standard form of a parabola is

x² = 4ay................ (1)

directix y = -a...........(2)

In this question, we are given directix y = 4, so lets substitute 4 for y in the equation 2 above.

Thus, we have:

4 = -a

a = -4

Let's now substitute -4 for -a in equation 1.

x² = 4ay

x² = 4 * -4 * y

x² = -16y

Therefore, the equation of a parabola with Vertex (0,0) and directrix y=4 is (x² = -16y)

**Answer:**

**Step-by-step explanation:**

To find the answer first you multiply 8 by b to get 64. Then multiply 64 by 14 to get 896. Now divide 896 by 3 to get your answer which is 298.67