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3 years ago

Someone please tell me what to do

Mathematics

1 answer:

kifflom [539]3 years ago

4 0

For this, we need to find the area of the larger rectangle (The room) and subtract from that the area of the smaller, shaded rectangle (The rug).
A=LW (L=Length, W=Width, A=Area)

The larger rectangle first:
A=(15)(10)
A=150 feet squared

Now the Rug:
A=(12)(7)
A=84 feet squared

Now to find the area that is NOT covered by the rug, we subtract:
150-84
= 66 feet squared will NOT be covered by the rug.

Hope this Helps!
-Sinnamin

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What is 3*ln(5)? Expanded and get the exact answer.

Mrac [35]

Answer:

ln(125) ≈ 4.828314

Step-by-step explanation:

The relevant log relation is ...

log(a^b) = b·log(a)

This means your expression is equivalent to ...

3·ln(5) = ln(5^3) = ln(125) ≈ 4.828314

The "exact" answer is ln(125).

5 0

3 years ago

1. A flower shop wishes to add the valuable Waimea orchid to its product list. They purchase a large shipment of bulbs from a su

AysviL [449]

Answer:

The concern of the florist that these bulbs are not Waimea orchids, but a similar appearing hybrid maybe true.

Step-by-step explanation:

A Chi-square goodness of fit test can be used to perform the hypothesis test.

The hypothesis is defined as:

<em>H</em>₀: There is no difference between the observed and expected value.

<em>Hₐ</em>: There is a difference between the observed and expected value.

The test statistic is:

$\chi^{2}=\sum \frac{(O-E)^{2}}{E}$

The total number of Waimea orchid bulbs is, 60.

7x + 5x + 4x + 4x = 60

20x = 60

x = 3

The expected number of Waimea orchid bulbs are:

Blue = 7 × 3 = 21

Red = 5 × 3 = 15

Violet = 4 × 3 = 12

Orange = 4 × 3 = 12

Consider the table provided.

The test statistic value is:

$\chi^{2}=\sum \frac{(O-E)^{2}}{E}=14.981$

The decision rule:

The null hypothesis will be rejected if $\chi^{2}\geq \chi^{2}_{\alpha, (k-1)}$ .

Compute the critical value as follows:

$\chi^{2}_{0.05, (4-1)}= \chi^{2}_{0.05, (3)}=7.815$

The test statistic value is 14.981.

$\chi^{2}=14.981> \chi^{2}_{\alpha, (k-1)}=7.815$

The null hypothesis will be rejected at 5% level of significance.

Conclusion:

As the null hypothesis was rejected it implies that there is a significant difference between the observed and expected value.

Thus, the concern of the florist that these bulbs are not Waimea orchids, but a similar appearing hybrid maybe true.

4 0

4 years ago

Lynn bought some party favors. The price of each party favor was $3. Her total came to $12. How many party favors did Lynn buy?

Alinara [238K]

4
12 divided by 3 =4

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3 years ago

Tax and tip word pro

sveticcg [70]

Answer:

Step-by-step explanation:

the item costs $ 3

sales tax is 4.4%

how much is the tax....

the tax can be calculated by multiplying the item cost by the percent sales tax ( in decimal form)

turn ur percent to a decimal

4.4% = 0.044

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3 years ago

A marketing manager for a makeup company randomly selected 60 rewards members and splits them into two groups. One group receive

antoniya [11.8K]

Answer:

The sample is 60 rewards members for the makeup company

Appropriate population is the entire members of the makeup company

(Email showing new products or emails showing products that were on sale) are the predictor variables and its categorical

the recipient clicked through to the website or not; is the response variable and its also categorical

Step-by-step explanation:

Given the data in the question;

a) What is the sample?

The sample is 60 rewards members for the makeup company

b) What would be an appropriate population to draw inference to based on this sample?

Appropriate population is the entire members of the makeup company.

c) What is the predictor variable? Is it quantitative or categorical?

The predictor variable is type of emails i.e (email showing new products or emails showing products that were on sale).

This categorical.

d) What is the response variable? Is it quantitative or categorical?

The response variable is; the recipient clicked through to the website or not.

This is also categorical.

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3 years ago