Answer: if you’re saying she received 75 calls the first evening then she would have received 10 more then that which is 85 on the third evening and 85x3 = 255 on the second evening.
So first evening 75
Second evening 255
Third evening 85
Y = x - 6
x = -4
plug in the second equation in to the first
y = -4 - 6
y = -1(4 + 6)
y = -1(10)
y = -10
The solution to the system is not listed in the options. The correct solution is (-4, -10).
I subtracted 40 from 650 which left me 610, which then i divided by 16 which equaled to 38
THE ANSWER IS 38
According to the Law of Cosines,
cosine (A) = (b^2 + c^2 - a^2) / (2 * b * c)
cosine (A) = (.63^2 + .75^2 -.48^2) / (2*.63*.75)
cosine (A) = (.3969 + .5625 -.2304) / .945
cosine (A) = .729 / .945
cosine (A) =
<span>
<span>
<span>
0.7714285714
</span>
</span>
</span>
The arc cosine of (<span>
<span>
0.7714285714) =
39.518 Degrees
Angle A = 39.518 Degrees
For the next angle it is easier to use the Law of Sines
a / sin (A) = b / sin (B) = c / sin (C)
.48 / sin (</span></span><span><span>39.518) = .63 / sin (B)
</span>
sin (B) = .63 * sin (39.518) / .48
</span><span>sin (B) = (.63 * 0.63632) / .48
</span>
<span><span><span>sin (B) = 0.4008816
</span>
</span>
</span>
/ .48
<span><span><span>sin (B) = 0.83517
</span>
</span>
</span>
Angle B = 56.634 Degrees
Angle C is easily solved by:
Angle C = <span>180 -39.518 -</span>56.634
Angle C = 83.848
Yes, it's just that "simple". LOL
Your answer is 15.875
-8+(-4)+(-2)+(-1)+(-1/2)+(-1/4)+(-1/8)
you half the previous vaule to find the next value
