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nekit [7.7K]
2 years ago
6

If three coins are thrown what is the probcbility Obtaining at least two head?​

Mathematics
1 answer:
Evgesh-ka [11]2 years ago
3 0

Answer:

2 head and 1 tail form my side

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Write two number that multiply to the value on top and add to the value on bottom
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Answer:

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Step-by-step explanation:

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3 years ago
Find the area of a triangle with vertices at D(2, 0), E(–1, 0), and F(2, –7).
MAVERICK [17]

Answer:

\frac{21}{2} units²

Step-by-step explanation:

D and E lie on the x- axis and F is vertically below D

The triangle formed is right at D with legs of length 3 and 7

The area (A) of a right triangle is found using the formula

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here b = 3 and h = 7, hence

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3 0
3 years ago
A skate board ramp is built on an incline so that it rests on a porch that is 1.3m high. The bottom of the ramp is placed 2.5m f
mr_godi [17]

Answer:

θ = 27.47°

Step-by-step explanation:

This problem can be represented as a right-angled triangle, as shown in the diagram below.

To find θ, we apply the tangent part of the trigonometric ratios SOHCAHTOA:

tanθ = \frac{opposite}{adjacent}

In the diagram, opposite = 1.3 m and adjacent = 2.5 m

Hence:

tanθ = \frac{1.3}{2.5}

tanθ = 0.52

θ = tan^{-1} 0.52

θ = 27.47°

The ramp forms 27.47° with the ground.

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4 years ago
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Answer:

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Step-by-step explanation:

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