Let x = download size of the standard version.
4515 - x = download size of high quality version.
High quality was downloaded 4 times more so 4 x 4.8 = 19.2 = downloads of high quality versions.
Set up a ratio:
2.3 / 19.2 = x / 4515-x
Cross multiply:
2.3(4515-x) = 19.2x
10384.50 -2.3x = 19.2x
Add 2.3x to both sides:
10384.50 = 21.5x
Divide both sides by 21.5:
X = 10384.50/21.5
X = 483
There were 483 downloads of the standard version.
Option 4 - 707
Step-by-step explanation:
Step 1:
Given that the spray from a sprinkler creates a circle with a radius of 15 feet.
We need to determine how many square feet of grass the sprinkler covers. To find this we need to find the circle's area that the sprinkler covers.
Hence we need to determine the circle's area having radius 15 feet
Step 2 :
We have the area of circle having radius r as pi * r ^2
So when r = 15, the area is
(22/7) * 15* 15 (where pi = 22/7)
= 707.14
Hence the area which is covered with the spray from the sprinkler is approximately 707 feet.
Option 4 is the answer
Would it not be one hundred and[insert number]?
Answer:
Step-by-step explanation:
in third quadrant sin is negative.
sin² θ+cos² θ=1
sin²θ+(-16/20)²=1
sin²θ+(-4/5)²=1
sinθ=±√(1-16/25)
=±√((25-16)/25)
=±√(9/25)
=±3/5
so
sin θ=-3/5
