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GuDViN [60]
3 years ago
12

Please help please please please

Mathematics
1 answer:
slamgirl [31]3 years ago
8 0
If two events are dependent on each other you have to multiply the probability of the first event times the probability of the second event. 
first count all the marbles here there are 21
you are asked about picking two green marbles there are 7 out of the 21 total.
The first event would be 7/21
The second event would be 6/20 (since you didn't replace and you took out a green one)
now multiply your two fractions together:
and you get 1/10. 
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You have 1. because it clearly states that you have 1 lipstick to 9 eyeshadow you have 1 lipstick.
5 0
3 years ago
An archway is modeled by the equation y = -2x2 + 8x. A rod is to be placed across the archway at an angle defined by the equatio
andrey2020 [161]
This is a fun problem!  Just graph the two equations, then see what points the line intersects with the parabola.  Or, set the two equations equal to each other, and solve for the two intersecting points.
Solve for x and y:       -2x+8 = x-2.23y+10.34 
7 0
4 years ago
I need help with this​
Ipatiy [6.2K]

Answer:

C

Step-by-step explanation:

-2x + 7= 3x -8

+8

-2x + 15=3x

+2x

15=5x

divide

x=3

put 3 in one of the equations

y= 3(3) - 8

y=9-8 = y=1

answer is c

:))))

5 0
3 years ago
Please help ASAP!!!!!!Jessica was digging for buried
SVEN [57.7K]

Answer:

Jessica dug 17.85 feet after 3 minutes

Step-by-step explanation:

35 × 0.17 = 5.95 (feet dug in one min.)

5.95 × 3 = 17.85 (feet dug in three mins.)

5 0
3 years ago
Read 2 more answers
8. You are making a salad. The ratio of tomatoes to cucumbers is 8: 2. You put 16 cucumbers in
34kurt

Answer:

64 tomatoes

Step-by-step explanation:

If it's 8 to 2 and you multiply the ratio (x to 16) you just do to one side what you did to the other. So, if you multiplied one part of the ratio by 8, you do the same to the other. 8*8 = 64 and 2*8 = 16

7 0
3 years ago
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