Use the geometric mean for right triangles here. Like this

. Cross multiply to get

, and

. That simplifies down to

. Pull out the 9 as a perfect square of 3 and you're left with

, first choice above.
Answer:
The answer to your question is: letter C
Step-by-step explanation:
Data
Find the Parabola's equation and express the equation as an inequality.
Vertex = (0, -5)
Equation
(x- h) ² = 4p(y - k)
x² = y + 5
y = x² - 5
But, we need the area upper the parabola, then
y ≥ x² - 5
We are given pattern 615,605,595.
Let us check differences of second term - first term and
Third term - second term
Second term - first term = 605 - 615 = -10.
Third term - second term = 595 - 605 = -10.
So, each time 10 is being subtracted from previous term.
So, the sequnace would be
<h3>615, 605, 595, <u>585</u>, <u>575</u>, <u>565.</u></h3>
Answer:
60 degrees
Step-by-step explanation:
Since all three sides are the same length, all three angles must be the same size. This means the triangle is an equilateral triangle
The angles are 60 degrees