Answer: 15
<u>Step-by-step explanation:</u>
a₁ = ___, a₂ = 7, a₃ = ____, a₄ = 1575
a₁(r) = a₂
a₂(r) = a₃
a₃(r) = a₄
To get from a₂ to a₄, you have to multiply by r²
⇒ 7r² = 1575
⇒ r² = 225
⇒ r = 15
Your answer would be, What is about 241.
Simplify
516 * 21/45
= ( 516/1) (21/45)
= (516/1) (7/15)
= (516)(7)/(1)(15)
= 3612/15
= 1204/5 (Decimal: 240.8) rounded to about 241
1204 divided by 5 equals 240, with a remainder of 4. 240 r 4, 240 4/5
Answer round to about : 241
Hope this helps!!!! Hope that what you are looking for, I tried my best to help!!!
Given the equation of the function:

The given function represents a parabola
We will make a complete square to find the coordinates of the vertex
The coefficient of x = 4
Half the coefficient of x = 2
Square it give = 4
So, we will add and subtract 4

Compare the last equation with the vertex form of the parabola

So, h = -2, k = -11
So, the answer will be the coordinates of the vertex = (-2, -11)
Answer:
Volume = 1114.1 
Step-by-step explanation:
Recall that the formula for the volume of a pyramid is given by:

where B is the area of the pyramid's base (in our case a square of side 12,8 in), and H the pyramid's height (in our case 20.4 in).
Then the square base of the pyramid has an area given by: 
Finally,we can now write the volume of the pyramid as:

Rounding the answer to a tenth of a cubic inch, we get:
Volume = 1114.1 