Answer:
![A=30u^2](https://tex.z-dn.net/?f=A%3D30u%5E2)
Step-by-step explanation:
Information that we know about the square:
side length:
which can asol be expressed as: ![l=\sqrt{30}u](https://tex.z-dn.net/?f=l%3D%5Csqrt%7B30%7Du)
we can use this information to calculate the area by the formula for the area of a square:
![A=l^2](https://tex.z-dn.net/?f=A%3Dl%5E2)
we subtitute the side length:
![A=(\sqrt{30}u )^2](https://tex.z-dn.net/?f=A%3D%28%5Csqrt%7B30%7Du%20%29%5E2)
the square root and the squared exponent cancel each other out (because they are opposite operations) and since this is an area it must have squared units:
![A=30u^2](https://tex.z-dn.net/?f=A%3D30u%5E2)
The exact value of the area of the square is ![30u^2](https://tex.z-dn.net/?f=30u%5E2)
Answer:
The correct option is;
D. -8·t² + 18·t + 6 = 10
Step-by-step explanation:
The given equation of the height toy cannon launched on top of a platform is given as follows;
h(t) = -8·t² + 18·t + 6...(1)
Where "h" represents the height in meters, at time "t" seconds after the ball is launched
When the height is 10 meters, we can write as follows;
The height of the ball, h(t) = 10
Therefore, by substituting the value of h(t) in equation (1), h(t) = -8·t² + 18·t + 6, when h(t) = 10 we get;
-8·t² + 18·t + 6 = 10.
Answer:
50% is not a possible population proportion who support candidate A.
Step-by-step explanation:
I will estimate 95% confidence interval to see if 50% a possible population proportion who support candidate A.
95% Confidence Interval can be calculated using
CI=p±
where
- z is the corresponding statistic in 95% confidence level (1.96)
- p is the sample proportion who support candidate A (70% or 0.70)
- N is the sample size (250)
Then CI=0.70±
≈ 0.70±0.06
That is 95% confidence interval is (64%, 76%). Since 50% is less than lower CI limit, 50% is not a possible population proportion who support candidate A.
Answer:
23.31
Step-by-step explanation:
2/8 4/16 8/32 those are some of the complex fractions