3 years ago

Three coins are tossed in succession. What is the probability of heads-tails-heads?

Mathematics

1 answer:

Firdavs [7]3 years ago

4 0

Answer:

1/8.

Step-by-step explanation:

The probability of of a head (and a tail) in one toss of a coin being obtained is 1/2.

Each toss is independent of the others so we multiply the probabilities.

So Prob(Head - tail - head) = 1/2*1/2*1/2 = 1/8.

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When using the given diagram to determine the area of the pentagon by decomposition, which statements are correct?:

pogonyaev

Answer:

Options (B) and (E)

Step-by-step explanation:

Area of ΔABC = $\frac{1}{2}(\text{Base})(\text{Height})$

= $\frac{1}{2}(14)(6)$

= 42 in²

Area of trapezoid ADEC = $\frac{1}{2}(b_1+b_2)h$

[Here, $b_1$ and $b_2$ are the parallel sides and 'h' is the height of the isosceles trapezoid given]

= $\frac{1}{2}(10+14)(8)$

= 96 in²

Area of the pentagon = Area of triangle ABC + Area of trapezoid ADEC

= 42 + 96

= 138 in²

Therefore, Options (B) and (E) are the correct options.

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3 years ago

A regular tetrahedron is a special triangular pyramid with four congruent faces that are equilateral triangles. A net of a regul

WINSTONCH [101]

Answer:

the tetrahedron has two bases

Step-by-step explanation:

a tetrahedron has only one bases which is a triangle

so this is not true

hope this helps

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3 years ago

(9x^4-3x^3+4x^2+5x+7) + (11x^4-4x^2-11x-9)

icang [17]

Answer:

20x^4 - 3x^3 - 6x - 2

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3 years ago

Multiply (x^2 - 3x + 4)(-2x^2 + 4x - 1) <br><br>Show the steps on how to solve please.

Firdavs [7]

-2x^4 + 10x^3 - 21x^2 + 19x - 4

that should be the right answer

5 0

2 years ago

The circumference of a circle is 22 meters. What is the approximate

Aleks [24]

The Diameter of the circle =7m

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3 years ago