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3 years ago

What property describes the number sentence 6+0=6

Mathematics

1 answer:

yawa3891 [41]3 years ago

8 0

The identity property. the same applies for n*1=n.

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Prove that sinxtanx=1/cosx - cosx

maks197457 [2]

Answer:

See below

Step-by-step explanation:

We want to prove that

$\sin(x)\tan(x) = \dfrac{1}{\cos(x)} - \cos(x), \forall x \in\mathbb{R}$

Taking the RHS, note

$\dfrac{1}{\cos(x)} - \cos(x) = \dfrac{1}{\cos(x)} - \dfrac{\cos(x) \cos(x)}{\cos(x)} = \dfrac{1-\cos^2(x)}{\cos(x)}$

Remember that

$\sin^2(x) + \cos^2(x) =1 \implies 1- \cos^2(x) =\sin^2(x)$

Therefore,

$\dfrac{1-\cos^2(x)}{\cos(x)} = \dfrac{\sin^2(x)}{\cos(x)} = \dfrac{\sin(x)\sin(x)}{\cos(x)}$

Once

$\dfrac{\sin(x)}{\cos(x)} = \tan(x)$

Then,

$\dfrac{\sin(x)\sin(x)}{\cos(x)} = \sin(x)\tan(x)$

Hence, it is proved

5 0

3 years ago

Find tan A for the triangle below. a 1.5 b. 0.667 C. 0.832 d. 1.202

Kaylis [27]

Answer:

Step-by-step explanation:

on edge

3 0

2 years ago

Please help! Correct answers only please!

Marrrta [24]

Answer:

D. is your answer

Step-by-step explanation:

$V=whl=7*6.5*7=318.5unit^3$

3 0

3 years ago

Labyrinth Middle School is 363 feet long. Tabitha makes a scale model of the school and the drawing is 33 inches long. What is t

defon

Answer:

The Answer is 1 inch represents 11 feet.

Step-by-step explanation:

The original measurement, or the measurement of the middle school, is 363 feet. The measurement of the drawing is 33. To get the answer, you take 363 and divide it by 33 to get the scale factor of 11. This means that for each inch, there is 11 feet. Hope this helps!

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3 years ago

Determine the translation that maps point C(7,5) to point C'(5,5).

Ilia_Sergeevich [38]

Answer: Left 2

Step-by-step explanation:

Move 2 units back which is left

3 0

3 years ago