Answer:
34
Step-by-step explanation:
Answer:
43.94?
Step-by-step explanation:
I think if you use inverse cos you should get the correct number. So, to find cos, you need to know the adjacent side and the hypotenuse. Here, the reference angle would be the person holding the kite. The distance from the person to the barn is the adjacent side, which is 18. The string of the kite, I assume, would be 25.
cos(∅) = ![\frac{18}{25}](https://tex.z-dn.net/?f=%5Cfrac%7B18%7D%7B25%7D)
cos(∅) = 0.72
cos⁻¹(0.72) = 43.94
I don't know if that's what you're looking for, but... If it's not correct, lmk so I can rewrite it. :)
Answer:
x = -2
Step-by-step explanation:
You would first distribute.
<u>6(3x + 7)</u> = <u>-5(4x - 3)</u> - 49 → 18x + 42 = -20x + 15 - 49
We can then calculate difference of 15 and 49.
18x + 42 = -20x <u>+ 15 - 49</u> → 18x + 42 = -20x -34
We can now move the variables to one side of the equation and the numbers on the other side.
18x + 20x + 42 - 42 = -20x + 20x - 34 - 42 → 38x = -76
Then, divide.
38x ÷ 38 = -76 ÷ 38 → x = -2
Answer:
0.13%
Step-by-step explanation:
Mean, u = 17.4%
standard deviation, sd = 27.5%
We are looking for the probability that the money will double in value. Therefore we are looking for the value of x = 100% (meaning the value is 100% more that the previous year)
Find the value of z-score
z = (x-u)/sd
= (100 - 17.4) / 27.5 = 3.003
Find the z score using the z-table
From z-table at P(z<3.003) = 0.9987
So, for the probability that it the money will be double is
P (Z>2.8982) = 1 - P(z<2.8982)
= 1- 0.9987
= 0.0013 = 0.13%
15 + 10 + 16 = 41
for the unshaded area
subtract the area of the whole rectangle shaded.
whole rectangle is
16(8) = area of 128
unshaded = 128 - 41 = 87
so your answers are
41, and 87