Answer:
Ya I think your right
Step-by-step explanation:
Answer:
1/15
Step-by-step explanation:
When the bag is full (of 10 marbles), there are 3 pink marbles. Thus, the probability of drawing a pink marble is 3/10.
We don't replace that pink marble. So now we have 9 marbles instead of 10. We now have 2 pink marbles in the bag. The probability of drawing a pink one now is 2/9.
Thus, the probability of drawing 2 pink marbles in a row is (3/10)(2/9), or
6/90, or 1/15
Answer:
176degrees
Step-by-step explanation:
Find the diagram attached. From the diagram;
arcGC = = arc BG
5x + 28 = 9x - 20
5x - 9x = -20 28
-4x = -48
x = -48/-4
x = 12
Get <AB
Since <AB = <BC
<BC = arcGC +arc BG
<AB = arcGC+ arc BG
<AB = 5x + 28 + 9x - 20
<AB = 14x + 8
<AB = 14(12) + 8
<AB = 168 + 8
<AB = 176degrees
Hence the arc AB is 176degrees
Answer:
x ≈ 6.2
Step-by-step explanation:
To find x using trig. ratios we require to find the hypotenuse of the right triangle on the left.
From the right triangle on the right we can calculate the hypotenuse.
sin53° = =
Multiply both sides by 30
opp = 30 × sin53° ≈ 24
Thus the length of the hypotenuse of the triangle on the left is 24, hence
cos75° = =
Multiply both sides by 24
x = 24 × cos75° ≈ 6.2