The length of a rectangle is twice it's width. If the perimeter of the rectangle is 58yd find its length and widtg
1 answer:
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Answer:
10β
Step-by-step explanation:
We can find this two ways, first by seeing in the step after it, cosines are canceled out. Since you already have 10β
on the next step, you can assume that (since only the cosines changed and the cosine next ot the blank was removed), the value is 10
β
.
You can also use double angle formulas from the previous step:
(sin(2β) = 2 sin(β) cos(β))and find that:
5 sin (2β) sin(β) = 5 * (2 sin(β) cos(β)) sin(β)) = (10 sin(β) sin(β)) cos(β) =
10β
cos(β)
But since cos(β) is already present, we can see that the answer is 10β
Answer:
Step-by-step explanation:
The given line passes through: (0,-3), (2,0), and (4,3).
We first of all find the slope using
Using we find the slope to be
The equation is given by , where
is the slope and c=-3 is the y-intercept.
Therefore the equation is
Answer:
27.2mm²
Step-by-step explanation:
Area of a triangle = * base * height
Base of this triangle = 8mm
Height = 6.8mm
Area =
= 4mm * 6.8mm
= 27.2mm²