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Ghella [55]
2 years ago
7

Satchi found a used bookstore that sells pre-owned DVDs and CDs. DVDs cost $9 each, and CDs cost $7 each. Satchi can spend no mo

re than $45.
Mathematics
1 answer:
Sholpan [36]2 years ago
6 0
If you are looking for how many DVDs and CDs Satchi can buy then Satchi would be able to buy 2 DVDs and 3 CDs for a cheap price or 3 DVDs and 2 CDs for a more expensive price.

Budget: $45

DVDs: CDs:
$9 $7

Add $9 + $7 = $16
Add again, which would equal $32
You can either buy 2 DVDs and 3 CDs which is $32 + $7 = $39 or 3 DVDs and 2 CDs which is $32 + $9 = $41
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A random sample of n = 16 professors from a university has been selected; salaries have been plotted on the following Q-Q plot.
Semenov [28]

Answer:

The objective of the confidence interval is to give a range in which the real mean of the population is placed, with a degree of confidence given by the level of significance.

The conclusion we can make is that there is 95% of probability that the mean of the population (professor's average salary) is within $99,881 and $171,172.

Step-by-step explanation:

This is a case in which, from a sample os size n=16, a confidence interval is constructed.

The objective of the confidence interval is to give a range in which the real mean of the population is placed, with a degree of confidence given by the level of significance. In this case, the probability that the real mean is within the interval is 95%.

5 0
3 years ago
What is the degree of this polynomial?<br><br> 4m^8-9m^6+3m^9-6m^7
Klio2033 [76]

Answer:

this is a ninth degree polynomial in m

Step-by-step explanation:

Inspect the polynomial for the highest power of the variable m.  It is m^9.  Thus, this is a ninth degree polynomial in m.

7 0
2 years ago
What are the solutions to 3n-1&gt;8 or 4n+3 &lt; -1? *​
hammer [34]

Answer:

3’d

Step-by-step explanation:

6 0
3 years ago
I need to make sure my answer is right. Leave your answers, A,b,c, or d in the answer section please.
Nataly_w [17]

Answer: its A

Step-by-step explanation:

4 0
3 years ago
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Which expression is equivalent to 32 ⋅ 3−5? fraction 1 over 3 to the power 3 fraction 1 over 3 to the power 7 fraction 1 over 3
mars1129 [50]
Given expression 3² × 3⁻⁵

We will apply the power rule x^m*x^n=x^{m+n}

3² × 3⁻⁵ = 3²⁺⁽⁻⁵⁾ = 3²⁻⁵ = 3⁻³

We will then apply the power rule x^{-n} =  \frac{1}{x^n}

3⁻³ = \frac{1}{3^3}

Final answer: \frac{1}{3^3}
3 0
3 years ago
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