14+(-13)−16

Mathematics

1 answer:

kompoz [17]2 years ago

8 0

The second and third ones are the true ones

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What would you multiply the dividend and divisor by in the following division problem so that the divisor would become a whole n

horsena [70]

Devisor is the bottom number
hmm

11.75=11 and 3/4
so times it by 4 to clear denomenator
but do it by top and bottom

23.4/11.75 times 4/4=93.6/47

so times it by 4/4

5 0

3 years ago

Read 2 more answers

PLEASE HELP! What is the slope of the line that passes through the points below? (Enter your answer as a decimal if necessary.)

lozanna [386]

is the right answer.

because rise is 1 and run is 1 = 1/1 = 1

8 0

2 years ago

6636=3<br> 8118=4 <br> 2212=0<br> 8688=?<br> 5971=?

pochemuha

6636 has 3 circle so 6636=3
8118 has 4 circle so 8118=4
2212 has 0 circle so 2212=0
8688 has 7 circle 8688=7
5971 has 1 circle 5971=1

6 0

1 year ago

Find all solutions of each equation on the interval 0 ≤ x < 2π.

Korvikt [17]

Answer:

$x = 0$ or $x = \pi$ .

Step-by-step explanation:

How are tangents and secants related to sines and cosines?

$\displaystyle \tan{x} = \frac{\sin{x}}{\cos{x}}$ .

$\displaystyle \sec{x} = \frac{1}{\cos{x}}$ .

Sticking to either cosine or sine might help simplify the calculation. By the Pythagorean Theorem, $\sin^{2}{x} = 1 - \cos^{2}{x}$ . Therefore, for the square of tangents,

$\displaystyle \tan^{2}{x} = \frac{\sin^{2}{x}}{\cos^{2}{x}} = \frac{1 - \cos^{2}{x}}{\cos^{2}{x}}$ .

This equation will thus become:

$\displaystyle \frac{1 - \cos^{2}{x}}{\cos^{2}{x}} \cdot \frac{1}{\cos^{2}{x}} + \frac{2}{\cos^{2}{x}} - \frac{1 - \cos^{2}{x}}{\cos^{2}{x}} = 2$ .

To simplify the calculations, replace all $\cos^{2}{x}$ with another variable. For example, let $u = \cos^{2}{x}$ . Keep in mind that $0 \le \cos^{2}{x} \le 1 \implies 0 \le u \le 1$ .