A = 28.356 ≈ 28.4
Here, we use law of sines, which says that sina / A = sinb / B. We know that b = 130 degrees, B = 10cm, and A = 6.2cm. Using algebra, we solve sina / 6.2 = sin130 / 10 to get a final answer.
The answer for your problem is letter B
x=-2 + 2i
I hope its useful :)
Answer:
Step-by-step explanation:
(a). 
= x ( 2x + 1 ) = <em>2x² + x</em>
(b). 
= 2( 2x + 1 )( 5x + 3 ) = <em>20x² + 22x + 6</em>
(c). 
= 20x² + 22x + 6 - ( 2x² + x ) =
( 20x² - 2x² ) + ( 22x - x ) + 6 =
<em>18x² + 21x + 6</em>
Answer:B) 20 hours
Step-by-step explanation:
15000 per one hour and if we multiply them all we get 300,000 smartphones if we do 15,000 multiplyed by 20. Hope it helps!
Answer:
15/8
Step-by-step explanation:
Applying
tanθ = Opposite(O)/Adjacent(A)
tanθ = O/A............ Equation 1
From the diagram,
To get the opposite(O), we apply pythagoras theorem
a² = b²+c²
Where c = opposite
17² = 8²+c²
289 = 64+c²
c² = 289-64
c² = 225
c = √225
c = 15
Substitute into equation 1
Therefore,
tanθ = 15/8
Hence the exact value of tanθ is 15/8
