The solution to your problem about the probability <span>of getting first a red and then a black marble is as follows:
</span><span>(3 red / 8 total) * (2 black / 7 total) = 3/28
</span>
Therefore, the probability of getting first a red and then a black marble is 3/28.
I hope my answer has come to your help. Thank you for posting your question here in Brainly.
I mean, it depends what type of math you're doing but I can try!
Answer:
yes
Step-by-step explanation:
Answer:
7x=-5x
Step-by-step explanation:
The length of the shadow is 124.7 in
<u>Explanation:</u>
<u />
Given:
Angle, θ = 30°
Height of the fence, h = 72 in
Length of the shadow, l = ?
Given:
tan 30° = ![\frac{perpendicular}{base} = \frac{height of the fence}{length of the shadow}](https://tex.z-dn.net/?f=%5Cfrac%7Bperpendicular%7D%7Bbase%7D%20%20%3D%20%5Cfrac%7Bheight%20of%20the%20fence%7D%7Blength%20of%20the%20shadow%7D)
![\frac{1}{\sqrt{3} } = \frac{72}{l} \\\\l = 72\sqrt{3} \\\\l = 124.7 in](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B%5Csqrt%7B3%7D%20%7D%20%3D%20%5Cfrac%7B72%7D%7Bl%7D%20%5C%5C%5C%5Cl%20%3D%2072%5Csqrt%7B3%7D%20%5C%5C%5C%5Cl%20%3D%20124.7%20in)
Therefore, the length of the shadow is 124.7 in