Answer:
y= (2-√3x+√3)(2+√3x-√3)
Step-by-step explanation:
hello:
use identity : a²-b²=(a-b)(a+b)
y=-3(x-1)^2+4 = 2²- (√3(x-1))²= 2²-(√3x-√3)² = (2-√3x+√3)(2+√3x-√3)
The area of the shaded region, to the nearest tenth, is about: 17.4 m².
There are four quarter circles in the diagram given, therefore:
Area of the shaded region = area of square - area of full circle
= 9² - π(4.5²)
= 17.38.
Therefore, the area of the shaded region, to the nearest tenth, is about: 17.4 m².
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Answer:
Area= about 17 m²
Step-by-step explanation:
We are given a square of length 9 m
Inside the circle we are given 4 quarter circles at the four corners
Radius of circle= 9/2 m=4.5 m
Shaded area= area of square-area of 4 quarter circles
= area of square- area of a circle
(since 4 times of a quarter equals 1)
= 9×9- π×4.5×4.5
= 81-63.585
= 17.415 m²
Area: about 17 m²
A.
3.5 inches
B.
4.2 inches
C.
4.9 inches
D.
6.0 inches
Answer:
Step-by-step explanation:
Here is the complete question: 28 elementary schools to 16 middle schools, write the ratio in simplest form.
Given ratio= elementary schools: middle schools:: 28:16
The ratio can be written as
Now to write into simplest form, we need to divide both numerator and denominator by 4.
∴ elementary schools: middle schools=
Hence, we get simplest ratio of elementary schools to middle schools=