Arcsecant or arcsec or sec⁻¹ is an inverse trigonometric function. And many calculators don't have a key for them because they can be calculated with basic trigonometric functions like so:

sec⁻¹(x)=cos⁻¹(1/x).

So the correct answer is the fourth one: y=cos⁻¹(1/x).

4 0

3 years ago

Mr. Brown recorded the final exam scores for his fifth period math class in the histogram below.

Scilla [17]

Answer:

A. Mean

Step-by-step explanation: Bc all Teachers average the grades using Mean.

Also if there is an outlire you need to use mean, Bc the Med won't be an exact average of the grades.

5 0

2 years ago

PLEASE HELP ME ASP!!!!!!

adoni [48]

Answer:

Step-by-step explanation:

First, note that the figure is a parallelogram.

The area of a parallelogram is given by:

$A=bh$

Where b is the base length and h is the vertical height.

The base length is 5+2 or 7, and the vertical height is 2.

Thus:

$A=7(2)\\A=14\text{ in}^2$

The answer is B.

4 0

3 years ago

Larry's evening is spent reading and watching TV. He can spend no more than 4 hours total on these activities, and he wants to s

Travka [436]

the answer is OD graph d.

6 0

2 years ago