Hello,
r=5(1+cos t)
r'=5(-sin t)
r²+r'²= 25[(1+cos t)²+(-sin t)²]=50(1-cos t)=50 sin² (t/2)
Between 0 and π, sin x>0 ==>|sin x|=sin x
Here is the method but i may have make some mistakes.
The shapes are similar, there was a dilation, which is what made the shape either bigger or smaller. I am not very good with instructions, but I will try to answer my best. You could set up a ratio, Bigger shape/smaller shape, or vice versa. Wish I could have helped more, sorry.
Good Luck! Hope I helped:)
Answer: 2
There are 10 triangles, that represent the number 2. There are 8 circles, that represents the number 1. To make this 1:1, we must add 2 circles.
10:10 = 1:1
The answer to the question is 2 circles.
Hope this helps you!
Answer:
Area of the doormat is <u>0.45 square yards</u>.
Step-by-step explanation:
Given:
The dimensions of a rectangular doormat are 0.6 yard and 75% of a yard.
Now, to find the area in square yards of the door mat.
75% of a yard.
75% of 1 yard.
The dimensions are 0.6 yard and 0.75 yard.
Now, to get the area of doormat:
Therefore, area of the doormat is 0.45 square yards.
W = 2
2 + 8 = 10
Hope I was able to help!