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3 years ago

Why do scientists use the international system of units (SI)

Mathematics

2 answers:

k0ka [10]3 years ago

7 0

So it can be known anywhere. So we use all of the same measurements

BlackZzzverrR [31]3 years ago

5 0

<span>So it can be known anywhere. So we use all of the same measurements</span>

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Look at the image. (calculus)

mash [69]

<h3>Answer: Choice H) 2</h3>

=============================================

Explanation:

Recall that the pythagorean trig identity is $\sin^2 x + \cos^2x = 1$

If we were to isolate sine, then,

$\sin^2 x + \cos^2x = 1\\\\\sin^2 x = 1-\cos^2x\\\\\sin x = \sqrt{1-\cos^2x}\\\\$

We don't have to worry about the plus minus because sine is positive when 0 < x < pi/2.

Through similar calculations, $\cos x = \sqrt{1-\sin^2x}\\\\$

Cosine is also positive in this quadrant.

-------------

So,

$\frac{\sqrt{1-\cos^2x}}{\sin x}+\frac{\sqrt{1-\sin^2x}}{\cos x}\\\\\frac{\sin x}{\sin x}+\frac{\cos x}{\cos x}\\\\1+1\\\\2$

Therefore,

$\frac{\sqrt{1-\cos^2x}}{\sin x}+\frac{\sqrt{1-\sin^2x}}{\cos x}=2$

is an identity as long as 0 < x < pi/2

5 0

1 year ago

Read 2 more answers

Rewrite the fractions with the same LCD.

pantera1 [17]

4 = 2*2

6 = 2*3

9 = 3*3

LCD = 2 * 3* 2 * 3 = 36

so the fractions are 3/4 * 9/9 = 27/36

5/6 = 30/36 and 5/9 = 20/36

6 0

3 years ago

Tomas is paid $200 for 5 days of work. How much is he paid per day?

mars1129 [50]

Final answer: $40
$200/5

7 0

2 years ago

Read 2 more answers

What is the wander to the bottom right

Ne4ueva [31]

So you do 93 times 60 because it said you have to do 6 ten times and that equal 5580

8 0

2 years ago

What is the reference angle for the angle with measure -pi/4

jolli1 [7]

Answer:

i think its 7n/4

Step-by-step explanation:

5 0

2 years ago