Answer:
4 ft.
Step-by-step explanation:
We can consider the orignial square's sides to be x, so area of the original figure: 
The new rectangle's sides will be x and x+8, so the area of the new figure will be x^2+8x.
We know that the new area is 3 times the old one. So our equation will be:
x^2+8x=3x^2
our answer will be x=4.
Therfore, the length of the side of the old flower bed is 4 ft.
The answer is B i just did it and teacher helped me
Converting a fraction into a decimal is dividing the fraction's numerator (the top number) by its denominator (the bottom number).
If you want to convert 3/8 into a decimal, divide 3 by 8. Because 8 can't go into 3, you have to add a zero to 3, making it 30. That's how you convert fraction to decimal.
To convert fraction to percent Divide the top of the fraction by the bottom,
Then multiply the result by 100.
Here u go
Answer:
22.8 m/s at 17.4°
Step-by-step explanation:
You want to find the resultant of ...
3 cis 0° +20 cis 20° = (3, 0) +(18.794, 6.840) = (21.794, 6.840)
The magnitude is the root of the sum of the squares of the velocities in the horizontal and vertical directions:
s = √(21.794² +6.840²) ≈ 22.8
The direction is found from the fact that the tangent of the angle is the ratio of vertical to horizontal coordinates:
angle = arctan(6.840/21.794) ≈ 17.4°
The resultant velocity is 22.8∠17.4° meters per second.
