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dexar [7]
3 years ago
14

Alyssa flips a fair,two-sided coin four times.What is the probability that the coin lands with heads facing up exactly three tim

es?
Mathematics
1 answer:
NARA [144]3 years ago
5 0
Fair coin means P(heads) = 1/2 for each flip.
The three flips are independent, so multiplication rule applies.
P(head,head,head)=(1/2)(1/2)(1/2)=1/8
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Veronika [31]

Answer: -20/3

Step-by-step explanation:

4 0
4 years ago
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Please help will mark brainliest
asambeis [7]

The total cost of the tent is 409.86

------------------------------------------------------

explanation:

230×0.65=149.50

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3 years ago
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Which point is a solution to the system of equations graphed below?
UkoKoshka [18]
C.

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3 years ago
The measure of angle x is 25 more than 4 times the measure of its complement. Find the measure of x.
topjm [15]
- Two angles that are complements of each other add to equal 90 degrees (they are complementary angles). 
- One angle measures x degrees.
- The other angle measures 25 more than 4 times the angle that measures x degrees; it measures 4x + 25 degrees.

To find x, set the sum of these expressions (x and 4x + 25) equal to 90 and solve algebraically for x.

90 = x + (4x + 25)
90 = x + 4x + 25
90 = 5x + 25
65 = 5x
13 = x

If you wanted to find the measure of angle x, you'd substitute 13 for x in its expression, 4x + 25.

4x + 25
4(13) + 25
52 + 25
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Answer:
x = 13
m∠x = 77°
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4 years ago
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