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mario62 [17]
3 years ago
10

Which equation illustrates the identity property of multiplication? (x + yi) × z = (xz + yzi) (x + yi) × 0 = 0 (x + yi) × (z + w

i) = (z + wi) × (x + yi) (x + yi) × 1 = (x + yi)
Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
8 0

Answer: (x + yi) × 1 = (x + yi)

Step-by-step explanation:

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The sky ride at an amusement park spans 2,715 feet. Over the course of the day,
olga_2 [115]

Answer:

C. 19,005 feet

Step-by-step explanation:

\begin{array}{ccc} \rm 1 \:   time \: ride \implies \: 2175 \: feet\\ \rm 7 \: times \: ride \implies 2175 \times 7 = 19005 \: feet\end{array}

hence,

our answer is C)

7 0
3 years ago
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Professor quantum has two coins which total 35 cents. since one of the coins is not a dime, what are the two coins
Brums [2.3K]

So, there are 1, 5, 10, 25 and 50 cent coins.

The most logical combination would be a dime and a quarter (10 + 25 = 35) but it is said that "one of the coins is not a dime".

But, there is something many people don't notice. It says that one of the coins isn't a dime, but the other one can be a dime. So, the two coins are a quarter and a dime.


Hope it helped,


BioTeacher101

5 0
4 years ago
the ferris wheel makes 12 revolutions per ride how far would someone travel during one ride. the diameter is 63 feet
Elan Coil [88]
Using the formula for circumference from diameter (c=pi(d)), we find that the circumference of the ferris wheel is about 197.97 feet.  We then multiply that number by the revolutions to get 2,374.64 feet, which is the answer.
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3 years ago
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Determine what type of statistical test should be used to answer each of the questions below. (You will only use each response o
Svet_ta [14]

Answer:

1.One proportion

2. Proportions from Dependent Samples

3. Two Independent Proportions

4. One Mean

5. Means from Dependent Samples

6. Two Independent Means

Step-by-step explanation:

What proportion of Americans believe in climate change? - One proportion

From the above information, there is only one sample and the question is about proportion. So, we must use "One proportion".

Do college students change their view on climate change as they go through college? One hundred freshman are asked if they believe in climate change. The same students are asked four years later if they also believe in climate change. - Proportions from Dependent Samples

From the information given, there are two samples and samples are dependent ( that is same students are asked four years later). Furthermore, the question is about proportion, we must use " Proportions from dependent samples ".



Is there a difference in the proportion of men and women who believe in climate change? - Two Independent Proportions

From the information given, there are two independent samples and they are asking about proportion, we must use "Two independent proportions".

What is the average amount of time that Americans spend watching or reading the news a day? - One Mean

From the information, there is only one sample and they are asking about mean. Therefore, we must use ". One mean".

Is there a difference in the amount of time that college students spend reading or watching the news as they go through college? One hundred students were asked as freshmen and as senior how many minutes a day they spent reading or watching the news? - Means from Dependent Samples

There are two samples and samples are dependent ( the same students are asked four years later). Also, they are asking about mean, we must use "Means from dependent samples ".

Is there is a difference in the amount of time that Republicans and Democrats spend watching or reading the news? - Two Independent Means

From the information given, there are two independent samples and they are asking about mean, we must use "Two independent means".

8 0
3 years ago
A car traveled a certain distance at 20 miles per hour. The car then traveled
liubo4ka [24]

Answer:

80 I'm pretty sure

Step-by-step explanation:

8 0
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