Answer:
40 feet by 80 feet.
Step-by-step explanation:
If the length is L and the width is W, we have:
L = 2W.
So as the length of the fencing is 160 feet:
L + 2W = 160
Substituting for L:
2W + 2W = 160
W = 40 feet.
L = 2W = 80 feet.
The value of cos 67.4° is 5/13.
According to trigonometric identities used in mathematics, sin of an angle is equal to cos of 90 - the given angle. Mathematically, this means that, suppose we have an angle x, then-
sin(90 - x) = cos x
Here, we are given that sin 22.6° = 5/13. As we can observe that (90 - 67.4) is equal to 22.6, and we need to find the value of cos 67.4° only. Thus we can write the given equation as follows-
sin22.6° = sin(90 - 67.4°)
= cos 67.4°
Thus, sin 22.6° = cos 67.4°
Hence, cos 67.4° = 5/13
Thus, the value of cos 67.4° comes out to be 5/13.
Learn more about trigonometric identities here-
brainly.com/question/7331447
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For the answer to the question What is the speed of Mai if she <span>is riding her bicycle and she takes 6 hours to ride 38.4 kilometers.
I'll provide a solution to my answer below.
</span>time = 6hours
Distance = 38.4 Km
Speed = distance /time
= 38.4/6
= 6.4 km/h
I hope my answer helped you.
Answer:
Step-by-step explanation:
<u>Given sides of a rectangle</u>
- Length: l =4 − 7(3x + 4y)
- Width: w = 3x(−2y)
<u>Perimeter of rectangle</u>
<u>Using the given values</u>
- P = 2( 4- 7(3x + 4y) + 3x(-2y)) =
- 2( 4 - 21x - 28y - 6xy) =
- 8 - 42x - 56y - 12xy
