The square root of 86 is 9.2...... Hence, it lies between 9 and 10.
Answer:
- 
Step-by-step explanation:
Given 630 < A > 720 then A is in the fourth quadrant where
cosA > 0 and sinA < 0
Given
cosA = 
= 
Then the triangle is a 3- 4 - 5 with opposite side 4, thus
sinA = - 
= - 
Using the trigonometric identity
sin2A = 2sinAcosA
= 2 × - ×
= 
= -
Let m be the rental cost for movies.
Let v be the rental cost for video games.
We have the following system of linear equations:
3m + 5v= 38
6m + 2v = 26
Multiply the first equation by 2
6m + 10v = 76
6m + 2v = 26
Subtract the both equations.
8v = 50
Divide both sides by 50.
v = 6.25
Plug this value into any of the two equations to solve for m.
You get m=2.25
The rental cost for a movie is
<h2>$2.25</h2>
The rental cost for a video game is
<h2>$6.25
</h2>
Have an awesome day! :)
Answer:
D
Step-by-step explanation:
Area = 1/2 a * p
Multiply both sides by 2
2*A = ap
Divide by p
2A / p = a
D
