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rodikova [14]
3 years ago
12

There are 3 strawberry ice creams, 4 chocolate ice creams, and 7 vanilla ice creams on a tray. Barbara selects 2 ice creams at r

andom without replacement. What is the probability that she selects 2 chocolate ice creams? Independent or dependent?
Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
5 0
14.29 percent probability or 2 out of 14. Dependent variable.
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Find the distance between (-1,4) and (5,5)​
Allisa [31]

Answer:

csdkb.jacdsmvadsavbdjk.adck.jdsmvd2182943243phr23

Step-by-step explanation:

4 0
3 years ago
WORTH 19 POINTS!!
marta [7]
You have to make a cos graph that starts its minimum and of -2, has an amplitude of 10, a period of 10 and  a maximum of 18.
I decided to use a cos graph since cos graphs start at their minimum or maximum unlike a sine graph that starts halfway between the minimum and maximum.  You also know the amplitude has to be 10 since 18+2=20 and 20/2=10.  We were also told that the water wheel completels a rotation every 10 minutes which means the period is 10 minutes.

lets start of with a regular cos(x) graph.  This starts on its maximum instead of minimum so we have to multiply it by -1 to get -cos(x) which does start on its minimum.

-cos(x) has an amplitude of 1 instead of 10, to fix that we multiply it by 10 to get -10cos(x) which has an amplitude of 10.
 
-10cos(x) has a period of 2π instead of 10, to fix this we multiply the x by 2π/10 to get -10cos((π/5)x) which now has a period of 10.

-10cos((π/5)x) has a minimum of -10 and maximum of 10 instead of a minimum of -2 and maximum of 18, to fix this we add 8 to -10cos((π/5)x) to get -10cos((π/5)x)+8 which does have a minimum of -2 and maximum of 18.

Therefore the answer is y=-10cos((π/5)x)+8. x being time in minutes and and y being the height in feet.  

I hope this helps.  Let me know if anything is unclear.
8 0
3 years ago
What is the value of cos theta given that (- 5, - 4) is a point on the terminal side of theta ?
Arte-miy333 [17]

Answer:I believe it's -5√41/41

Step-by-step explanation:

5 0
3 years ago
Help!! Will award brainliest! (if correct)
galina1969 [7]

In the half-angle formula for sine and cosine, notice that a plus/minus sign appears in front of each radical (square root). Whether your answer is positive or negative depends on which quadrant the new angle (the half angle) is in

3 0
3 years ago
What are the coordinates of the point on the directed line segment from (3,3) to
sergey [27]

Answer:

3,5

Step-by-step explanation:

the answer is 3,5

I hope this helps

5 0
3 years ago
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