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hodyreva [135]
2 years ago
6

Need answer to these 3 70 points

Mathematics
1 answer:
avanturin [10]2 years ago
4 0

Answer:

1.a

2.e

3.e

Step-by-step explanation:

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14a²b<br> 7a²b<br> =<br> Simplify
lidiya [134]

Step-by-step explanation:

if14a^2b/7a^2b answer is 2

and if the sign is addition then the answer is21a^2b if subtraction answer is7a^2b

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3 years ago
I need help with this I have no clue what to do so please help me.
Juli2301 [7.4K]

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57 95

Step-by-step explanation:

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The figure shows a kite ABCD where AB = AD, BC = CD and the diagonals AC and BD intersect at E.
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ABD

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Mark brainliest today afternoon message was not going that account was deleted

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2 years ago
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Answer:

Peytons car travels 14.8 miles less than Madeline's car in with one gallon

Step-by-step explanation:

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A coin is tossed 8 times. What is the probability of getting all heads? Express your answer as a simplified fraction or a decima
kumpel [21]

Answer:

The probability of getting all heads is \frac{1}{256}.

Step-by-step explanation:

For each time the coin is tossed, there are only two possible outcomes. Either it is heads, or it is not. So we use the binomial probability distribution to solve this problem.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

In this problem, we have that:

A coin is tossed 8 times. This means that n = 8

In each coin toss, heads or tails are equally as likely. So p = \frac{1}{2}

What is the probability of getting all heads?

This is P(X = 8)

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

[tex]P(X = 8) = C_{8,8}*(\frac{1}{2})^{8}*(1 - \frac{1}{2})^{0} = \frac{1}{256}

The probability of getting all heads is \frac{1}{256}.

7 0
3 years ago
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