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3 years ago

Robin rolled a die and then flipped a coin. What is the probability she rolled an even number and the coin landed on heads?

Mathematics

1 answer:

aleksandr82 [10.1K]3 years ago

4 0

Answer:

1/4

Step-by-step explanation:

There are 3 even numbers of the 6 numbers on a die.

(1,2,3,4,5,6) are the possible numbers. 2,4,6 are even

P( even number ) = 3/6 = 1/2

P (heads) = 1/2

Since they are independent events, we can multiply the probabilities together

P (even, heads) = 1/2 * 1/2 = 1/4

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Use your device keyboard to enter x+1= 7 in the box.<br>Check Answer

egoroff_w [7]

<h2>ANSWER:</h2>

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Answer is x = 6

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<h2>EXPLANATION:</h2>

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We know that 7 - 1 is 6. 6 is what x equals because 7 - 1 is 6 and 6 + 1 is equal to 7.

Hope this helps!

7 0

3 years ago

How i can prove the proofs?

Marianna [84]

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2 years ago

Two paths in a park intersect so that one of the angles at the intersection is 75°.What are the three other angle measurements f

oksian1 [2.3K]

Answer:

105°, 75°, and 105°.

Step-by-step explanation:

If two straight paths intersect at a point , four angles will be formed.

These are pairs of vertical angles.

The adjacent angles add up to 180°

If one of the angles is 75°, the supplement will be

$180 - 75 = 105 \degree$

Therefore the three other angles will be , 105°, 75°, and 105°.

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2 years ago

Serrians triangle has a height of 3x-4 and the base length is 8x+4 what is the area of the triangle

kirill115 [55]

Area of a triangle is base × height ÷2
base=8x+4 x=-4/8 x=-1/2
height=3x-4 x=4/3

A=b×h÷2
A=(-1/2×4/3)÷2
A=(-4/6)÷2
A=(-4/6)÷2/1 to divide by fractions flip the second and multiply
A=-4/6×1/2
A=-4/12
A=-1/3

3 0

3 years ago

Find the third side of a right triangle if the hypotenuse is 14 km and one side is 9 km

Galina-37 [17]

14^2 - 9^2 = a^2
Easy enough
14^2 = 196
9^2 = 81
196 - 81 = 115
The square root of 115 = 10.72

The third side is 10.72km

3 0

2 years ago