3 years ago

Are they all correct ? And help with the number 4 please ? Thank you

1 answer:

4 0

Yes they are all correct and for number 4 compare write your own comparison of 2 things like if people like dogs more or cats more

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sattari [20]

The cotangent function is defined as the ratio between cosine and sine of a given angle, i.e.

$\cot(x) = \frac{\cos(x)}{\sin(x)}$

Since you can't have zero at the denominator, the cotangent function is not defined when the sine is zero.

Let's look at your option:

$\sin(90^\circ) = 1$ , so the cotangent is defined here

$\sin(180^\circ) = 0$ , so the cotangent is not defined here

$\sin(270^\circ) = -1$ , so the cotangent is defined here

$\sin(450^\circ) = \sin(360^\circ+90^\circ)=\sin(90^\circ) = 1$ , so the cotangent is defined here

6 0

3 years ago

ozzi

The slope is 3/2 or 1.5

6 0

2 years ago

OLEGan [10]

Sally has 3 nickels, 9 dimes, and 18 quarters

3 0

3 years ago

ikadub [295]

Answer:

most likely the last choice

Step-by-step explanation:

6 0

3 years ago

Andrej [43]

Answer:

The cost of the sweater is $37.37

Step-by-step explanation:

$71.55-3.19=68.36$

$68.36$ ÷ $2=34.18$

$34.18+3.19=37.37$

6 0

3 years ago