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SVETLANKA909090 [29]
3 years ago
7

paula removed 4/5 of the DvDs from a new box of read/write DvDs and sam removed 5/8 of the DvDs that remained in the box. If sam

remobed 15 DvDs from tje box, how many DvDs did paula remove?
Mathematics
1 answer:
Goryan [66]3 years ago
4 0

i dunno

sorry i cant do it too hard maybe show the hector one agian

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HELP PLS. Due in 10 mins
sertanlavr [38]

Answer:

1. Linear

2. Not Linear

3. Linear

4. Linear

Step-by-step explanation:

<u>Function 1</u>

Linear, follow a sequence of 4, 3

<u>Function 2</u>

Not Linear, does not follow a sequence

<u>Function 3</u>

Linear, follow a sequence of 1, 0

<u>Function 4</u>

Linear, follow a sequence of 3, -1

7 0
2 years ago
Please Help! Multiple Choice!
Katyanochek1 [597]

Using the z-distribution, the p-value would be given as follows:

b) 0.0086.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis we test if the means are equal, hence:

H_0: \mu_D - \mu_C = 0

At the alternative hypothesis, it is tested if they are different, hence:

H_1: \mu_D - \mu_C \neq 0

<h3>What are the mean and the standard error for the distribution of differences?</h3>

For each sample, they are given as follows:

  • \mu_D = 12, s_D = \frac{5.2}{\sqrt{73}} = 0.6086
  • \mu_C = 14, s_C = \frac{4.1}{\sqrt{81}} = 0.4556

Hence, for the distribution of differences, they are given by:

  • \overline{x} = 12 - 14 = -2.
  • s = \sqrt{0.6086^2 + 0.4556^2} = 0.76

<h3>What is the test statistic?</h3>

The test statistic is given by:

z = \frac{\overline{x} - \mu}{s}

In which \mu = 0 is the value tested at the null hypothesis.

Hence:

z = \frac{\overline{x} - \mu}{s}

z = \frac{-2 - 0}{0.76}

z = -2.63.

Using a z-distribution calculator, for a two-tailed test, with z = -2.63, the p-value is of 0.0086.

Hence option B is correct.

More can be learned about the z-distribution at brainly.com/question/13873630

#SPJ1

4 0
2 years ago
If y varies inversely as x, find the constant of variation if y=36 when x=9
Jobisdone [24]

Answer:

k = 324

Step-by-step explanation:

Y varies inversely as x

Let k be the constant of variation

Y = k/ x

Y= 36 and x= 9

Substitute the value of Y and x

36 = k/9

Make k the subject of the formula

k= 36*9

k =324

5 0
3 years ago
Solve the following dividend problem.alameda tent company has 75,000 shares of stock outstanding. what total dividend declaratio
butalik [34]
75,000×2=150,000
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5 0
3 years ago
Read 2 more answers
Number sentences for these 4?
Murrr4er [49]
A. 15-35=-20
b. -2+7=5
c. -10+14=4
d. 60-100=-40
6 0
3 years ago
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