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inysia [295]
3 years ago
8

100 POINTS TO ANYONE WHO ANSWER THISS!!! An oil slick is expanding as a circle. The radius of the circle is increasing at the ra

te of 20 meters per day. Express the area of the circle as a function of d, the number of days elapsed.
Mathematics
1 answer:
Dima020 [189]3 years ago
3 0

Answer:

circle area =  400*d^2

Step-by-step explanation:

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⭐ Question 3
mash [69]

Answer:

1/10

Step-by-step explanation:

Because there are 10 markers and only one is yellow. so you have a one in ten chance to pull a yellow marker.

<em>Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Also remember to rate answers to help other students, While leaving thanks to answers that help you. Have a great day!</em>

8 0
2 years ago
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Grace wants to find the probability of a family of 3 children having 2 boys and 1 girl. Use a tree diagram to list the possibili
pychu [463]

Answer:

Step-by-step explanation:

My approach was to draw out the probabilities, since we have 3 children, and we are looking for 2 boys and 1 girl, the probabilities can be Boy-Boy-Girl, Boy-Girl-Boy, and Girl-Boy-Boy. So a 2/3 chance if you think about it, your answer 2/3 can't be correct. If we assume that boys and girls are born with equal probability, then the probability to have two girls (and one boy) should be the same as the probability to have two boys and one girl. So you would have two cases with probability 2/3, giving an impossible 4/3 probability for both cases. Also, your list "Boy-Boy-Girl, Boy-Girl-Boy, and Girl-Boy-Boy" seems strange. All of those are 2 boys and 1 girl, so based on that list, you should get a 100 percent chance. But what about Boy-Girl-Girl, or Girl-Girl-Girl? You get 2/3 if you assume that adjacencies in the (ordered) list are important, i.e., "2 boys and a girl" means that the girl was not born between the boys.

5 0
2 years ago
Evaluate y=x/7+15 when y=21
Ad libitum [116K]

Answer:

x = 42

Step-by-step explanation:

y = x/7 + 15 ; y = 21

21 = x/7 + 15

21 - 15 = x/7

6 = x/7

x = 6 × 7

x = 42

Thus, The answer is 42

<u>-TheUnknownScientist</u>

3 0
3 years ago
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The circumference of a circle is 20π cm. What is the DIAMETER of the circle?
marshall27 [118]
D≈6.37

<span>CCircumference 20</span>
5 0
3 years ago
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Please help its number 4
Veseljchak [2.6K]

Answer:

E 60+60+60=180 sum of triangle's angels must be 180

6 0
3 years ago
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