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snow_tiger [21]
3 years ago
10

Raj was asked to fully simplify this polynomial and put it into standard form.

Mathematics
2 answers:
tatuchka [14]3 years ago
8 0

Answer:

6x³

Step-by-step explanation:

2x²y + 8x³ – xy² – 2x³ + 3xy² + 6y³=

6x³+2x²y+2xy²+6y³

natita [175]3 years ago
3 0

Step-by-step explanation:

The first term is 6x3

Because he subtracted like terms 8x3 and 2x3

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Question 1 a
Marizza181 [45]

Answer:

B) A one-sample t-test for population mean would be used.

Step-by-step explanation:

The complete question is shown in the image below.

The marketing executive is interested in comparing the mean number of sales of this year to that of previous year.

The marketing executive already has the value of mean from previous year and uses a sample to calculate the mean and standard deviation of sales for the current year.

Since, data is being collected for one sample only this limits us to chose between one sample test for mean. So now the possible options are one sample t-test for population mean and one sample t-test for population mean.

If we read the statement we can see that we have the value of sample mean and sample standard deviation. Value of population standard deviation is unknown. In cases where value of population standard deviation is not known and sample standard deviation is given, t-test is used.

Therefore, we can conclude that A one-sample t-test for population mean would be used.

4 0
3 years ago
Which expressions are equivalent to z +(2+6)?
Papessa [141]

Answer:

C

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
(a) determine the null and alternative hypotheses, (b) explain what it would mean to make a Type I error, and (c) explain what i
iren2701 [21]
Null: the mean amount of peanut butter in a jar is equal to 32 oz.
alternative: the mean amount of peanut butter in a Jar is less than 32oz.

type 1 error is is rejecting the null when it is actually true. this means that we would say that the mean amount of peanut butter is not equal to 32 when it actually is.

type 2 error is failing to reject the null when it is actually false. this means that we would say the mean amount of peanut butter is equal to 32 when in reality it is less.
3 0
3 years ago
Which of the following tools can be used to prove a statement using coordinate methods?
baherus [9]
All of the above can be used in order to prove a statement using coordinate methods.
6 0
3 years ago
1.
EleoNora [17]

Answer:

0.40x = 320

Step-by-step explanation:

40 = percent, 320 = part. Write the percent as a decimal and multiply by the whole.

4 0
3 years ago
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