Step-by-step explanation:
3x - 2x + 8 = 12; x=4
Now, Evaluate the value of x
3(4) - 2(4) + 8 = 12
12 - 8 + 8 = 12
12 + 0 = 12
12 = 12
Answer:
1/5
Step-by-step explanation:
formula is y = kx
k is the constant of proportionality
when x is 5 y is 1
when x is 10 y is 2
so 1 = k * 5
so k = 1/5
For this problem, SSA, we use the Law of Sines
We are given:
- angle A (87<span>°</span>)
- side length a (22)
- side length c (12)
we will plug these into the formulas to solve for the missing values
I'll try to get these as exact as possible ( you can approximate if needed)
<span><span>First: Use the Law of Sines to find angle G.</span><span>
sin G / c =sin A / a</span><span>
sin G / 12 =sin(87°) / 22</span><span>
sin G = (0.999 x 12) / 22</span><span>
sin G =<span>0.545
</span></span><span> G =<span>sin-1(0.545)</span></span><span>
G =33.005°
</span>Then: Find remaining angle by subtracting the other angles from 180°.<span>
B =180° - G° - A°</span><span>
B =180° - 33.005° - 87°</span><span>
B =59.995°
Lastly</span><span>: Use the Law of Sines to find side c.
</span><span> b / sin(B) =a / sin(A)</span><span>
c / sin(59.995°) =22 / sin(87°)</span><span>
c =(sin(59.995°) x 22) / sin(87°)</span><span>
c =19.078
Hope this helps :)
(sry it took a while)</span></span>
6x10=60m^2
2x1.5=3m^2
Pi x 2^2=12.566m^2
60-3-12.566=44.433
44.433/10=4.43
So around 5 bags
5 x4x60=£23
