Answer:
a 44°
Step-by-step explanation:
Think of the right triangle formed by the beam, the ground, and the wall.
The beam is the hypotenuse. For the angle between the ground and the beam, call it angle A, the 13.9 ft side is the opposite leg. The trig ratio that relates the opposite leg and the hypotenuse is the sine.
sin A = opp/hyp
sin A = 13.9/20
sin A = 0.695
A = sin^-1 0.695
A = 44°
Answer:
jail bond!
Step-by-step explanation:
Answer: it is depends on what unit of measurement your look looking for
Answer: 0.9147
Step-by-step explanation:
Given: 20% of the plants ordered are petunias.
Let p = 20% = 0.2
Sample size: n = 120
If they follow normal distribution, then mean = np = 120x 0.2 = 24
Standard deviation = ![\sqrt{n p(1-p)}=\sqrt{120\times0.2\times.8}](https://tex.z-dn.net/?f=%5Csqrt%7Bn%20p%281-p%29%7D%3D%5Csqrt%7B120%5Ctimes0.2%5Ctimes.8%7D)
![=\sqrt{19.2}\\\\ =4.38](https://tex.z-dn.net/?f=%3D%5Csqrt%7B19.2%7D%5C%5C%5C%5C%20%3D4.38)
The probability that no more than 30 plants are petunias : ![P(\dfrac{X-\mu}{\sigma}\leq \dfrac{30-24}{4.38})](https://tex.z-dn.net/?f=P%28%5Cdfrac%7BX-%5Cmu%7D%7B%5Csigma%7D%5Cleq%20%5Cdfrac%7B30-24%7D%7B4.38%7D%29)
![=P(Z](https://tex.z-dn.net/?f=%3DP%28Z%3C1.37%29%3D%200.9147)
Hence, the probability that no more than 30 plants are petunias = 0.9147
It's actually PEMDAS. P is for parenthesis. E is for exponents. M is for multiplication. D is for division. A is for Addition. S is for subtraction.
Here's an example that includes all of these:
(6-2)²x4/2+6-4
P first.
(6-2) = 4
(4)²x4/2+6-4
Now E.
(4)² = 16
16x4/2+6-4
Then M.
16x4 = 64
64/2+6-4
Next is D.
64/2 = 32
32+6-4
Now A.
32+6 = 38
38-4
And finally, S.
38-4 = 34.
I hope this helped