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Sliva [168]
3 years ago
6

Karma was given some birthday money. She puts the money in an account. Every month after that, she deposits the same amount of m

oney.The equation that models this situation is y = 75x + 60, where y is the amount of money in the account and x is the number of deposits.What does the y-intercept mean in this situation?
A.She was given $75 for her birthday.
B.She puts $60 in the account each month
. C.She was given $60 for her birthday.
D.She puts $75 in the account each month.

Mathematics
2 answers:
patriot [66]3 years ago
6 0
The answer is D I think. I'm not really good with math oof
Andreyy893 years ago
4 0

Answer:

C. <u>Karma was given $60 for her birthday</u>

Step-by-step explanation:

Hello, great question. These types are questions are the beginning steps for learning more advanced Algebraic Equations.

If we graph the equation given to us in the question we can see the following graph (attached below). If we then look at the y-intercept we can see that the function crosses the y-axis at a value of 60. Therefore we can safely say that the y-intercept means that <u>Karma was given $60 for her birthday</u>. Since the y-intercept represents an initial static (non-changing) value in the function.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

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Your neighbor has a bag with 5 oranges and 7 apples in it. You will be receiving two pieces of fruit from your neighbor. What is
Snezhnost [94]

Answer:

31.82% probability that you will receive 2 apples.

Step-by-step explanation:

The fruits are removed from the bag, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x sucesses is given by the following formula:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

In which:

x is the number of sucesses.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

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)!}

In this question:

5 + 7 = 12 total fruits, which means that N = 12

7 apples, which means that k = 7

You receive 2 fruits, which means that n = 2

What is the probability, in percent, that you will receive 2 apples, assuming she removes them from the bag in random order?

This is, as a proportion, P(X = 2). So

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

P(X = 2) = h(2,12,2,7) = \frac{C_{7,2}*C_{5,0}}{C_{12,2}} = 0.3182

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4 0
3 years ago
What is the correct answer to number 7? Please explain and break it down step by step.
a_sh-v [17]

Answer:

The answer to your question is (x + 3)

Step-by-step explanation:

                    \frac{5x + 5}{x} \frac{x^{3}+ 3x^{2}}{x^{2} - 1} \frac{x - 1}{5x}

Factor the expression

                   \frac{5(x + 1)}{x} \frac{x^{2}(x + 3)}{(x - 1)(x + 1)} \frac{x - 1}{5x}

Simplify

Cancel 5 because is in both numerator and denominator                  

Cancel (x + 1) because is in both numerator and denominator                  

Cancel (x - 1) because is in both numerator and denominator                  

Cancel x² because is in both numerator and denominator              

   

After simplifying, the result is  (x + 3)

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Answer:

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Step-by-step explanation:

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