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olga2289 [7]
3 years ago
9

If 20 coins are tossed, find the probability that they'll all land on tails.

Mathematics
1 answer:
Svetach [21]3 years ago
5 0
The odds of 1 coin landing tails is 1/2, for 2 coins it would be 1/4, 3 would be 1/8, 4 would be 1/16, etc.

the way you find this is by doing 1/2^n where n is the number of coins you have. if you plug in 20, you get 1/1,048,576
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Number of Edges = [?]<br> =
muminat

Answer:

6

Step-by-step explanation:

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2 years ago
The vertical of three squares are joined to form a right triangle , what is the area of the largest square
lakkis [162]

Answer:

43cm²

Step-by-step explanation:

let's first consider the area of a square.

the area is L² which means all sides are equal so we take the length times the breadth which is both equal because like we said all sides are equal.

so to find the side of the square using the area, we take the square root of both of the area.

\sqrt{25}  = 5

and also

\sqrt{18}  = 4.2

so we have the height of the triangle as 5cm and the base is 4.2cm.

now, from the triangle, since we have two sides and it's a right-angled, we can use Pythagoras' formula.

\sqrt{ {5}^{2}  +  {4.2}^{2} }  = 6.53cm

so the side 6.53cm is also the same side as the largest triangle. Since it's a square, all sides are equal. So we find the area of the largest triangle by using the formula

Area = L²

Area = 6.53²

Area = 42.6cm

the nearest cm square

Area = 43cm²

8 0
2 years ago
Read 2 more answers
Write n+5n=______ in simplest form.
pshichka [43]
Just add them together we get 6n. 


7 0
3 years ago
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Snowy's Snow Cones has a special bubble gum snow cone on sale. The cone is a regular snow cone that has a spherical plece of bub
Aloiza [94]

Draw a diagram to illustrate the problem as shown below.

Calculate the volume of the empty cone.

V₁ = (1/3)π*(6 in)²*(10 in) = 120π in³

Calculate the volume of the sphere.

V₂ = (4/3)π*(1.5 in)³ = 4.5π in³

The volume that can be filled with flavored ice is

V = V₁ - V₂ = 115.5π in³ = 362.85 in³

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4 0
3 years ago
Compute the magnitude and direction of the sum of the two vectors: 170N of force at 87° and 100N of force at 46°.
krok68 [10]

Answer:

F = 254.08N Θ = 72.03°

Step-by-step explanation:

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∑Fx = 170cos87 + 100cos46 = 78.36N

∑Fy = 170sin87 + 100sin46 = 241.70N

To find the resultant vector we use pythagorean theorem

F = √(∑Fx)² + ∑(Fy)²

F = √(78.36² + 241.70²)

F = √(64559.1796)

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the angle between both force can be obtained using

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Θ = tan⁻ 3.084

Θ = 72.03°

5 0
3 years ago
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