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mario62 [17]
3 years ago
9

Which expression is equivalent to.... please help

Mathematics
1 answer:
Margarita [4]3 years ago
4 0
X^2+3x+3+[(2x^2+13+15)/(x+5)] is equivalent to option 4.   im sorry if i got my math wrong but i hope this helps. 
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What number must you add to complete the square? x2 + 8x = 15
Lisa [10]
Is that x squared ?
6 0
3 years ago
Suppose the probability that a softball player gets a hit in any single at-bat is 0.300. Assuming that her chance of getting a h
Ksivusya [100]

Answer:

P(X=4)=(1-0.3)^{4-1} 0.3 = 0.103

The probability that she will not get a hit until her fourth time at bat in a game is 0.103

Step-by-step explanation:

Previous concepts

The geometric distribution represents "the number of failures before you get a success in a series of Bernoulli trials. This discrete probability distribution is represented by the probability density function:"

P(X=x)=(1-p)^{x-1} p

Let X the random variable that measures the number os trials until the first success, we know that X follows this distribution:

X\sim Geo (1-p)

Solution to the problem

For this case we want this probability

P(X=4)

And using the probability mass function we got:

P(X=4)=(1-0.3)^{4-1} 0.3 = 0.103

The probability that she will not get a hit until her fourth time at bat in a game is 0.103

4 0
3 years ago
Can someone help with question 3
kirza4 [7]

Answer:

This is what you have to explain:

With 5n, you are multiplying a number and a variable.

With 5 + n, you are adding a number and a variable.

4 0
3 years ago
Hello I NEED help! Pls help in 10 min<br> what is 5/3 divided by 7
denis-greek [22]

Answer:

Step-by-step Turn 7 into a fraction

3/5 ÷ 7/1

Use the recipricle and multiply

3/5 x 1/7

Multiply across

3/35

And that's it! :)

3 0
3 years ago
Read 2 more answers
I need help with four questions NOW!!!! please.
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1- Formal
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3- a question
4- Brainstorming

Hope this helps! : )
4 0
3 years ago
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