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PolarNik [594]
3 years ago
6

20 points

Mathematics
2 answers:
BlackZzzverrR [31]3 years ago
7 0
Answer: 2+0.15(x-15)\le 7 which is choice C

============================================================

Explanation:

x = total number of minutes spent using the vacuum

If x is larger than 15, then x-15 represents the amount of time spent past the first 15 minutes. The machine will charge 15 cents per minute at this point. The machine will charge 0.15 dollars for (x-15) minutes. So 0.15*(x-15) dollars is charged on top of the $2 already spent for those first 15 minutes.

In total, the cost for Caroline is
T = 2+0.15(x-15)

This total must not be larger than $7. The total T can be equal to 7 or smaller than 7

So,
T \le 7
2+0.15(x-15)\le 7

blsea [12.9K]3 years ago
6 0
The answer I think is 2+7+0.15x_>15
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Aleonysh [2.5K]

Answer:

9700                                          

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4 0
3 years ago
2\3x20<br><br> 20 points thx
Ivenika [448]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
Use the fact that the variance of a Poisson distribution is σ2=μ. The mean number of bankruptcies filed per hour by businesses i
lianna [129]

Answer:

Variance = 5

Standard deviation = 2.236

0.2650257

Step-by-step explanation:

For a Poisson distribution is σ² = μ.

Given that:

Mean , μ of bankruptcies files per hour = 5

μ = 5

For a Poisson distribution :

P(x = x) = (μ^x * e^-μ) / x!

The Variance and standard deviation :

Variance : σ² = μ = 5

Standard deviation = sqrt(variance) = sqrt(5) = 2.236

B.) Find the probability that at most three businesses will file bankruptcy in any given hour.

P( x ≤ 3) = P(0) + P(1) + P(2) + P(3)

P(x = 0) = (5^0 * e^-5) / 0! = 0.0067379

P(x = 1) = (5^1 * e^-5) / 1! = 0.0336897

P(x = 2) = (5^2 * e^-5) / 2! = 0.0842243

P(x = 3) = (5^3 * e^-5) / 3! = 0.1403738

0.0067379 + 0.0336897 + 0.0842243 + 0.1403738

= 0.2650257

6 0
3 years ago
Fine Furniture Company had a net income of $50,000. Accounts receivable increased by $30,000; inventory decreased by $20,000; ac
Nitella [24]

Answer:

The amount of cash flow from continuing operating activities under the indirect method is $43,000.

Step-by-step explanation:

Fine Furniture Company had a net income of $50,000.

Accounts receivable increased by $30,000.

The inventory decreased by $20,000.

The accounts payable increased by $4,000.

Salaries payable decreased by $1,000.

The amount of cash flow from continuing operating activities under the indirect method is:

(50000-30000+20000+4000-1000)=$43000

4 0
3 years ago
Help!! I am going to fail my class!!! I will mark you brainiest!
adoni [48]

Answer:

600,000(.90)       327,290

Step-by-step explanation:

6 0
3 years ago
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