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Tanzania [10]
3 years ago
15

What is the probability that you flip 4 coins and at least 2 land on tails?

Mathematics
1 answer:
Marianna [84]3 years ago
3 0
50%. Each coin has a 50% chance on landing on head and a 50% chance of landont on tails.
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Find x.<br> to<br> 150 <br> X =<br> Alternate interior angles
eimsori [14]

Answer: 75 degrees

Step-by-step explanation: supplementary angles= 180 degrees, 180 - 115 = 75

3 0
2 years ago
A number decreased by -12 is 40. Find the number.​
STALIN [3.7K]

Answer:52

Step-by-step explanation:

decreased by -12 is basically adding 12. so 40+12=52

6 0
4 years ago
A survey team is trying to estimate the height of a mountain above a level plain. From one point on the plain, they observe that
aliya0001 [1]

Answer:

5507.79 feet

Step-by-step explanation:

To find the height of the mountain, we can draw triangles as in the image attached.

Let's call the height of the mountain 'h', and the distance from the first point (31 degrees) to the mountain 'x'.

Then, we can use the tangent relation of the angles:

tan(34) = h/x

tan(31) = h/(x+1000)

tan(31) is equal to 0.6009, and tan(34) is equal to 0.6745, so:

h/x = 0.6745 -> x = h/0.6745

using this value of x in the second equation:

h/(x+1000) = 0.6009

h/(h/0.6745 + 1000) = 0.6009

h = 0.6009 * (h/0.6745 + 1000)

h = 0.8909*h + 600.9

0.1091h = 600.9

h = 600.9 / 0.1091 = 5507.79 feet

8 0
3 years ago
Select the correct answer.
likoan [24]

Answer:

x = 20

Step-by-step explanation:

Traingle ABC = Traingle DEC

4x-1×4×5 = x+2×4×5

80x-1 = 2×20x

80x-20x = 2+1

60x = 3

60÷3 = x

x = 20

6 0
3 years ago
Alice has a basket containing 6 red socks, 4 blue socks, and 12 white socks. Find the theoretical probability that Alice will ra
mrs_skeptik [129]
There is a 42.22% chance 
7 0
3 years ago
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