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Ganezh [65]
3 years ago
9

If you flip a fair coin 7 times, what is the probability that you will get exactly 4 tails?

Mathematics
2 answers:
aleksklad [387]3 years ago
3 0

Answer:50%

Step-by-step explanation:

kobusy [5.1K]3 years ago
3 0

Answer:

35/128

Step-by-step explanation:

khan

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6. The dimensions of a rectangular garden are 380ft x 250ft. If you want to walk around this garden to make 3 miles for a mornin
SSSSS [86.1K]

Answer:

Step-by-step explanation:

L=3(5280)/(2(380+250))

L=15840/1260

L=12.57

So to walk three miles one must walk around the garden 12.57 times.

7 0
3 years ago
How much do a dozen cookies weigh?
yaroslaw [1]
0.43 oz

                   Hope this helps...
7 0
3 years ago
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Sarah is purchasing pencils to share. Each package has 12 pencils. The equation n = 12p, where n is the total number of pencils
podryga [215]

Answer and Step-by-step explanation:

Each package has 12 pencils

total number of pencils Sarah purchased: n = 12p

n = total number of pencils

p = number of packages

n depends on p, because the total number of pencils dependos on how many packages she will buy, so:

independent variable: p

dependent variable: n

╔═══╦══════════╦════╗

║ p     ║ n = 12p            ║ n  ║

╠═══╬══════════╬════╣

║ 3     ║ n = 12*3           ║ 36     ║

╠═══╬══════════╬════╣

║ 4     ║ n = 12*4           ║ 48     ║

╠═══╬══════════╬════╣

║ 5     ║ n = 12*5           ║ 60     ║

╠═══╬══════════╬════╣

║ 6     ║ n = 12*6           ║ 72     ║

╠═══╬══════════╬════╣

║ 7     ║ n = 12*7           ║ 84     ║

╚═══╩══════════╩════╝

7 0
4 years ago
Solve by substitution <br> X^2= 2y + 10<br> 3x-y = 9
Viefleur [7K]

Answer:

x=-4\\ x=-2\\ y=-21\\ y=-15

Step-by-step explanation:

x^{2} =2y+10

y=-9+3x

x^{2} =2(-9+3x)+10

x^{2} =-18+6x+10

x^{2} =6x-8

x^{2} -6x+8

x=-4, -2

y=-9+3(-4)

y=-9-12

y=-21

y=-9+3(-2)

y=-9-6

y=-15

8 0
4 years ago
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Expand and simply <br> 4(2d + 3) – 2(3d – 5)
Brut [27]

Answer:

8d+12-6d+10

2d+22

Step-by-step explanation:

4 0
3 years ago
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