Answer:
Step-by-step explanation:
Several trig identities are involved in the proof of this. This is the order in which they are used.
- cos(2x) = cos²(x) -sin²(x)
- cos²(x) +sin²(x) = 1
- cos(x) = 1/sec(x)
<h3>Proof</h3>
Starting with the left side, we can transform it into the right side.
Answer:
The answer is 0.675
Step-by-step explanation:
If you were going to ask Brainly, you could have easily just used a calculator lol
The question is asking " What is the square root of 14?
3.74
But, if you need to round to the nearest tenth, your answer should come out to be 3.7
Answer: x=100
Step-by-step explanation:
In parallelograms the opposite angles are equal. As the bottom left angle is 80° the opposite angle (top right), is also 80°. All 4 angles in a quadrilateral must add up to 360. Because you know 2 angles added together are 160° the other two angles must equal 200°. As opposite angles are equal you know 2x=200, divide by 2 x=100
Step-by-step explanation:
To find the volume of a cylinder the equation is
V = π×r×r×h
= 22÷7 × 4.5 × 4.5 × 8
Answer = 508.94
