P(red) first drawn:
20/36=5/9
P(red) second drawn:
19/35
95/315 or 19/63. As a result, the probability that both marbles are red is 19/63. Hope it help!
Answer:
30 in
Step-by-step explanation:
See attached image.
The length of AB is 17 (radius). The length of AC is 8 (given info).
AC splits segment BD in half, so point C is the midpoint of segment BD.
AC is perpendicular to the chord, so triangle ABC is a right triangle. You now have a right triangle with a leg of length 8 and hypotenuse of lenght 17.
The Pythagorean Theorem: (leg)^2 + (leg)^2 = (hypotenuse)^2.
![8^2+(BC)^2=17^2\\\\64+(BC)^2=289\\\\(BC)^2=225\\\\BC=\sqrt{225}=15](https://tex.z-dn.net/?f=8%5E2%2B%28BC%29%5E2%3D17%5E2%5C%5C%5C%5C64%2B%28BC%29%5E2%3D289%5C%5C%5C%5C%28BC%29%5E2%3D225%5C%5C%5C%5CBC%3D%5Csqrt%7B225%7D%3D15)
That's half the length of the chord, so double that to get 30 inches for the full length of the chord BD.
There are 20 paper clips in total so
Black probability: 10/20 (50%)
Red probability: 8/20 (40%)
White probability: 2/20 (10%)
Answer:
x= -4
Step-by-step explanation:
<h3>-2x-8=2x+8 or, -2x-8-2x-8=0 or,-4x-16=0 or,-4(x+4)=0 or,x+4=0 or,x= -4</h3>