The scale factor for the first one is 2.25
And for the second one it’s 7
I hope this helps :)
The perimeter of the circle is also known as the circumference that said figure out what the diameter is and multiply that by pi (3.14)
We are asked to express cos^ 3 x in terms of powers of trigonometric functions not greater than 1
cos ^ 3 x is equal to cos x * cos^2 x.
<span>cos^2 x = 1 - sin^2 x.
</span>sin^2 x = (1 - cos 2x) /2
the answer is cos ^ 3 x = cos x * (1 - <span> (1 - cos 2x) /2 )</span>
The common denominator is 12
