Answer:
See below
Step-by-step explanation:
- <em>There is a formula for estimating square root of non-perfect square numbers</em>
- <em>√(A²±B) = A ± B/2A</em>
- <em>where A² is the nearest perfect square, B is the difference between the original number and the perfect square</em>
<u>Examples</u>
- 1) √75 = √(8²+11) = 8 + 11/(2*8) = 8 + 11/16 = 8.6875
- 2) √114 = √(11² - 7) = 11 - 7/(2*11) = 10.6818
Answer:
C (450)
Step-by-step explanation:
Multiply 150 × 3 to get the volume of the cylinder
Answer:
Graphing
Step-by-step explanation:
1) You can graph this equation by using y=mx+b. You can replace that equation with y=3x-1.
M=3
X=x
B=-1
On a graph you would down 1 since it's negative and make a point. Then you would put a 1 under the 3 to make it a fraction. 3/1. Then you would divide 1 by 3 (1 ÷ 3). Then you would go to the right 0.33 because it's positive, and the up 1. Then you would make a second point.
This would only give you one line which wouldn't give you an intersection.
The equation for the area of a circle is: A = πr^2.
A: Area
π: pi
r: radius
To find exact area (we leave pi in the answer):
- Find the radius of the circle.
The diameter 5ft.
The radius is half the diameter so r = 2.5 ft
-plug in 2.5 for r in the area equation
A = π(2.5)^2
2.5^2 is 6.25
A = π6.25
A = 6.25π
There you go! The exact area of the circle is 6.25π ft^2
To approximate the area instead of using π in the equation we use (3.14)
So,
A = (3.14)(2.5)^2
A = (3.14)*6.25
Approximated Area = 19.625 ft^2