1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Arlecino [84]
3 years ago
13

Use the fundamental identities to fully simplify the expression

Mathematics
2 answers:
Lyrx [107]3 years ago
6 0

Hey!

Hope this helps... And we're super sorry that no answered your question...

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

3sin^3 x * csc(x) + cos^2 x + 2cos(-x) * cos(x) = ?

3sin^3 x * (1/sin) + cos^2 x + 2cos(x) * cos(x) = ? We know 2cos(-x) = 2cos(x) because of the opposite angle theorem: cos(-x) = cos(x)

3sin^2 x + cos^2 x + 2cos(x) * cos(x) = ?

3sin^2 x + cos^2 x + 2cos^2 x = ?

sin^2 x + cos^2 x + 2cos^2 x = ?

3sin^2 x + 3cos^2 x = ?

3 (sin^2 x + cos^2 x) = ?

3 * 1 = ?

= 3

Thepotemich [5.8K]3 years ago
3 0
Hello here is a solution :

You might be interested in
Given: △ABC, m∠B=90°<br> AB=12, BC=16, <br> BK⊥AC<br> Find: AC and BK.<br><br><br> PLS HELP ME!!!!!!
Monica [59]
The blue that i circle idont know if the answer is true.. i m just trying

5 0
3 years ago
3 x 52 x a = a x 2 x 78
Hitman42 [59]
True they both equal 156
8 0
3 years ago
What dimensions of the box are required to fit the candle? 5 by 6 by 18 7 by 6 by 18 5 by 3 by 18 7 by 3 by 18
LiRa [457]
The minimum height of the box must be 18 units, which is present in all the choices.
Another minimum dimension that we already know is 7 units, since it is an oblique box, and the projection of bottom-left to top-right is shown as 7 units.
That leaves us with the second (7x6) or fourth choice (7x3).

We have not been given the other dimension of the triangle, but from common sense, it looks longer than the front (5 units) leg, therefore 6 units is not an unreasonable dimension.

With 99.5% certainty, I would choose the second choice (7x6x18) because the remaining dimension does not look like 3 units long.
4 0
3 years ago
A ball is shot upward from a slingshot at a velocity of 15 m/s the height of the ball after t seconds is given by h(t)=10+ 5t+1/
otez555 [7]

Answer:

The instantaneous velocity after eight seconds is 9 m/s

Step-by-step explanation:

Given as :

The ball shot upward with velocity of 15 m/s

The height of the ball after t sec is given as h(t) = 10 + 5t + \frac{1}{4}t^{2}

Now, The instantaneous velocity after 8 sec = \frac{\partial h(t)}{\partial t}

Or, The instantaneous velocity = \frac{\partial (10 +5t + \frac{1}{4}t^{2})}{\partial t}

or, The instantaneous velocity = 5 + \frac{1}{4}\times 2 t

Now at t = 8 sec

The instantaneous velocity = 5 + 4 = 9 m/s

Hence The instantaneous velocity of ball at t = 8 sec , is 9 m/s  Answer

3 0
3 years ago
The delivery ramp at the corner cafe id a right triangle. The hypotenuse is 4 meters long. One leg is 3 meters long. What is the
disa [49]

Answer:

f. sqrt 7 meters

Step-by-step explanation:

we use Pythagoras' theorem here,

let the unknown side be x,

therefore,

=> 3² + x² = 4²

=> x² = 16 - 9

=> x = √7 m

7 0
3 years ago
Read 2 more answers
Other questions:
  • Someone best help me....
    13·2 answers
  • 1. Round to the nearest hundred, and then subtract 4,623-3,892
    12·1 answer
  • Next four multiples of a unit fraction one half
    13·2 answers
  • To find out how fast a tree grows, you can measure its trunk. A giant red oak's diameter was 248 inches in 1965. The tree's diam
    13·2 answers
  • The microwave oven was invented in 1945 when some experiments with radar equipment failed and melted some nearby chocolate inste
    7·2 answers
  • 10.2 divided by (unknown number)= 0.8. Find the unknown number
    13·2 answers
  • 13. Solve –5√ x = –15. A. x = –9 B. x = –7 C. x = 9 D. x = 7
    9·1 answer
  • Find the slope f(x)= - 4/5x +2
    6·1 answer
  • Solve for k<br> p(k + 12) = 8 – 4k
    6·2 answers
  • Solve for x: -24 = 6x<br> 1/4<br> -4<br> 4<br> - 1/4
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!