s²=5 , so we look for the nearest squares, one less than 5 and the other greater.
First it would be perfect squares, which means 4=2² and 9=3²
4 < 5 < 9 so 2 <√5 < 3
now we'll do the same with the numbers with tenths, but to speed up we don't check them all. We do estimation for the square root knowing that it must be between 2 and 3
5 is close to 4 then 9, so I estimate 2.3 for its square root
(2.3)² = 5.29 - it is close but more then 5 so I look for less number then 2.3
(2.2)² = 4.84 - it is also close and less then 5 so:
4.84 < 5 < 5.29 therefore 2.2 < √5 < 2.3 and:
5 - 4.84 = 0.16 ; 5.29 - 5 = 0.29
0.16 < 0.29 means the √5 is closer to 2.2 then 2.3
So <u>the √5 rounded to the nearest tenth is 2.2</u>
Of course is much easier if you can use the calculator. Then you have:
√5 = 2.2<u>3</u>60679... ≈ 2.2 {because 3<5}
:)
Answer:
question where dude?
Step-by-step explanation:
By: ₰₮₤₳V₤
Answer:
y = -2/3x - 4
Step-by-step explanation:
Formula: y = mx + b
m (slope)
b (y-intercept)
Slope Formula: y2 - y1 ÷ x2 - x1
Substitute: -8-(-2) = -8+2 = -6
6-(-3) = 6+3 = 9
-6/9 (funny, I know)
Simplify --> -2/3
slope = -2/3
Substitute for the y-intercept --> to do this, we plug in a coordinate pair
-8 = -2/3(6) + b
-8 = -4 + b => add 4 to both sides
b = -4, and thus, our y-intercept is -4
Plug our values into the formula: y = mx + b
y = -2/3x + (-4)
simplify to get our final equation
y = -2/3x - 4
Answer:
B) 3.14(144)
D) 2(3.14)(12)
E) 3.14(24)
Step-by-step explanation:
The formula to find the area of a circle is 
, where r = radius, while the formula to find the circumference of a circle is 
or 
, where r = radius and d = diameter.
Given the information above, option B) is a correct statement because 12^2 equals 144, and once you're done solving the square, you multiply it by 3.14. Next, option D) and E) are correct, too, because they exactly follow and . Furthermore, for E), diameter = twice the radius, so it makes sense to multiply 3.14 by 24.
