Step-by-step explanation:
the formulae to find the perimeter of a rectangle is p = 2(l+w)
<em>where</em>
p= perimeter
L = length
W = width
just add the length and width {given in the question} , and multiply them by 2
answer: = 2(11+4)
= 2 × 15
= 30 m
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Solve the trigonometric equation:

Make a substitution:

and the equation becomes

Rewrite conveniently
– t as
+ t – 2t, and then factor the left-hand side by grouping:

Factor out
2t + 1:

Substitute back for
t = cos x:

Therefore,

where
k is an integer.
Solution set:

I hope this helps. =)
Answer:
2½
Step-by-step explanation:
33÷15 you got this don't give up
Answer`Step-by-step explanation:
The length of an arc depends on the radius of a circle and the central angle Θ. We know that for the angle equal to 360 degrees (2π), the arc length is equal to circumference. Hence, as the proportion between angle and arc length is constant, we can say that:
Hope that help, at least a bit.