WHICH IS EQUIVALENT TO A divided by 2<br> 2A <br> 1/2 A<br> 2/A<br> A/2

Which trigonometric functions have a domain of [–1, 1]?

Annette [7]

Answer:

The answer is A. y = arcsinx and y = arccosx

Step-by-step explanation:

7 0

3 years ago

Andy watches 10 television shows every week. He watches dramas, comedies, and reality shows. Dramas are 1 hour long, comedies ar

Lunna [17]

Answer:

$d+0.5c+2r=8\\\\ c=2d$

Step-by-step explanation:

Let d= dramas

c= comedies

r= reality shows

Dramas are 1 hour long, comedies are 30 minutes, and reality shows are 2 hours long.

Total time spent on watching = $1 \times(d) + 0.5 \times (c) +2 \times(r)= d+0.5c+2r$

[ $30\ minutes=\dfrac{30}{60} \ hours = 0.5 hour \ \ (1 hour = 60\ minutes)$ ]

Since he spent 8 hours for this, that means

$d+0.5c+2r=8$ → First equation

He watches twice as many comedies as dramas.

i.e. $c=2d$ → second equation

So, the system of equations could be used to determine how many of each type of show he watches each week:

$d+0.5c+2r=8\\\\ c=2d$

6 0

4 years ago

If mAD=85 degrees and mBC=31 degrees find the value

Eddi Din [679]

Answer: x = 11

To start, we know that a whole circle equals 360 degrees. If we subtract the 2 arcs we know, 85 and 31, we have 244 degrees left for the 2 congruent arcs. Dividing that by 2 gives us 122 for each arc.

Now, write the equation: 122 = 13x - 21

Solve this, to find the x = 11.

7 0

3 years ago

From a point 300 feet above ground in a firetower, a ranger spots two fires in the George Washington National forest. The angle

ad-work [718]

Answer:

The answer is " $\bold{17456.6 \ ft}$ "

Step-by-step explanation:

Please find the complete question in the attached file.

$\sin \theta = \frac{P}{h}\\\\\to BC =x\\\\\to BD =y\\\\$

The height of tower (AB) = 300 ft

Distance = CD

$\Delta ABC \\\\\sin \theta = \frac{AB}{AC}\\\\\sin (2.5) = \frac{300}{AC}\\\\Ac= \frac{300}{\sin (2.5)}\\\\AC= 6877.68 \\\\\Delta ABD \\\\\sin \theta = \frac{AB}{AD}\\\\\sin (1.3) = \frac{300}{AD}\\\\AD= \frac{300}{\sin (1.3)}\\\\AC= 1322.33$

calculating CD :

$CD^2 = AC^2 +AD^2 -2\cdot AC \cdot AD \cdot \cos(117^{\circ}) \\\\CD = \sqrt{(6877.68)^2 +(13223.23)^2 -2\cdot (6877.68) \cdot (13223.23) \cdot \cos(117^{\circ})}\\\\CD =\sqrt{47302482.1824 + 174853811.6329 - 82576463.207}\\\\CD= \sqrt{304732757.02}\\\\CD= 17456.6 \ ft$

5 0

3 years ago

How much work is done when a taxi driver lifts a 100N100N suitcase 0.7m0.7m into the trunk of his cab

Rudiy27

Answer:

70 joules

Step-by-step explanation:

We have the following information

100N and 0.7 m

What is workdone?

We say that Work is done if a force which is applied to an object is able to move that object. We calculate the value of The work by multiplying the force by what is known to be the movement of the object.

(Workdone = Force x distance).

A force of 100 newtons, in this question moves an object 0.7 meters

Workdone =

100N x 0.7

= 70 joules

Thank you!

5 0

3 years ago

WHICH IS EQUIVALENT TO A divided by 2 2A 1/2 A 2/A A/2