Answer:
-cos(2x)
Step-by-step explanation:
I did trig last year and tutor a trig class this year :)
If you recall soh-cah-toa, tangent is equal to the opposite length divided by the adjacent length so it is true.
Answer:
Step-by-step explanation:
Area of Circle can be calculated using following formula
Where r is radius of circle
<u>Area of outer circle (r=11 yd)</u>
<u>Area of inner circle (r=8 yd)</u>
Area of shaded region
A percentage is a way to describe a part of a whole. The regular selling price of the computer notebook will be $937.5.
<h3>What are Percentages?</h3>
A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.
To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.
Let the selling price of the computer notebook be represented by x.
Now, if Sara buys the computer this week, the selling price of the computer will be (100%-16%)x = 0.84x.
Also, the saving she made by buying this week will be $150, therefore, we can write,
x-0.84x = $150
0.16x = $150
x = 937.5
Hence, the regular selling price of the computer notebook will be $937.5.
Learn more about Percentages:
brainly.com/question/6972121
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