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3 years ago

What is Trigonometry ?

Mathematics

2 answers:

Mazyrski [523]3 years ago

7 0

Answer:

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles. The field emerged in the Hellenistic world during the 3rd century BC from applications of geometry to astronomical studies.

andre [41]3 years ago

3 0

Answer:

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.

Step-by-step explanation:

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Yunuss earns $17.00 per hour as a lab tech. and gets time and a half for overtime for any hours over 40. Last week he worked 46.

Gwar [14]

Answer:

Step-by-step explanation:

C is correct answer

17*40+17*1.5*6.25=839.38

7 0

3 years ago

I don't understand the bottom questions. Please help, it's due for tomorrow!

Elena-2011 [213]

I am giving the answers only.

2/5

4/7

5/11

1/5

2/3

3/5

2/15

1/2

3 0

3 years ago

Please Help Me

ludmilkaskok [199]

Given:

The point (9,-12) is on terminal side of angle theta in standard position.

To find:

The exact value of each of the six trigonometric functions of theta.

Solution:

The given point is (9,-12). Here, x-coordinate is positive and y-coordinate is negative. So, the point lies in 4th quadrant and only cos and sec are positive in 4th quadrant.

We know that,

$r=\sqrt{x^2+y^2}$

$r=\sqrt{9^2+(-12)^2}$

$r=\sqrt{81+144}$

$r=\sqrt{225}$

$r=15$

Now,

$\sin \theta=\dfrac{y}{r}=\dfrac{-12}{15}=-\dfrac{4}{5}$

$\cos \theta=\dfrac{x}{r}=\dfrac{9}{15}=\dfrac{3}{5}$

$\tan \theta=\dfrac{y}{x}=\dfrac{-12}{9}=-\dfrac{4}{3}$

$\cot \theta=\dfrac{1}{\tan \theta}=-\dfrac{3}{4}$

$\text{cosec} \theta=\dfrac{1}{\sin \theta}=-\dfrac{5}{4}$

$\sec \theta=\dfrac{1}{\cos \theta}=\dfrac{5}{3}$

Therefore, the values of six trigonometric functions of theta are $\sin \theta=-\dfrac{4}{5},\cos \theta=\dfrac{3}{5},\tan \theta=-\dfrac{4}{3},\cot \theta=-\dfrac{3}{4},\text{cosec} \theta=-\dfrac{5}{4},\sec \theta=\dfrac{5}{3}$ .

6 0

4 years ago

Which product is negative?

xxTIMURxx [149]

Negative times a Negative = Positive
Positive times a Positive = Positive
Negative times a Positive = Negative
Positive times a Negative = Negative

Option A:

Negative * Positive * Negative * Positive

Negative * Negative * Positive

Positive * Positive

Positive

Option B:

Anything times 0 is 0, this is incorrect.

Option C:

Negative * Negative * Negative * Negative

Positive * Negative * Negative

Negative * Negative

Positive

Option D:

Negative * Positive * Negative * Negative

Negative * Negative * Negative

Positive * Negative

Negative

Therefore your answer is D.

4 0

3 years ago

Read 2 more answers

Pls help will give 10 points!

sertanlavr [38]

Answer:

A' (-4, 2)

B' (-4, 4)

C' (-1, 4)

D' (-1, 2)

I think

6 0

3 years ago