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Vika [28.1K]
3 years ago
10

Rewrite this polynomial in STANDARD FORM:5x-10x^2+8x^3​

Mathematics
1 answer:
Ainat [17]3 years ago
4 0

Answer:

8 {x}^{3}   -  10 {x}^{2}  + 5x

Step-by-step explanation:

5x - 10 {x}^{2} + 8 {x}^{3}   \\   \red{ \bold{= 8 {x}^{3}   -  10 {x}^{2}  + 5x}} \\ is \: in \: the \: standard \: form \\

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What is -5 3/4 - 3 1/2​
lubasha [3.4K]

Simplify the expression.

Exact Form:

−37/4

Decimal Form:

−9.25

Mixed Number Form:

−9 1/4

3 0
3 years ago
Read 2 more answers
Describe when to use a series and when to use an equation.
anyanavicka [17]

Answer:

An equation is used when we have paired sets of data to describe how the values in one pair change when we alter the values in the other set.

On the other hand, a series gives a general formula of determining the value of the nth observation when the values have been arranged in increasing order

Step-by-step explanation:

An equation such as; y = 3x+5 models the relation between the response variable y and the predictor variable x. It tells us how y changes when x is altered by a certain magnitude. The value 3 is described as the slope while 5 is the y-intercept.

On the other hand, a series such as;  score = 2 + 3n provides a general formula that can be used to determine the score of the nth individual in a sample or population.

5 0
3 years ago
A professor records the difference between the marks scored by the students in the class test last week and those scored in the
dezoksy [38]

Answer: (10.82\ , 13.18)

Step-by-step explanation:

The confidence interval for population mean is given by :-

\mu\pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Sample size : n= 35  , large sample (n>30)

Mean difference : \overline{x}=12

Standard deviation : \sigma=3

Significance level : \alpha=- 1-0.999=0.001

Critical value : z_{\alpha/2}=z_{0.0005}=3.4807567

Now, the 99.9% confidence interval for the mean difference between the marks scored last week and marks scored this week by all the students will be :-

12\pm\ (3.4807567)\dfrac{2}{\sqrt{35}}\\\\=12\pm1.18\\\\=(10.82\ , 13.18)

Hence, the  99.9% confidence interval for the mean difference between the marks scored last week and marks scored this week by all the students = (10.82\ , 13.18)

4 0
3 years ago
Combine any like terms in the expression. If there are no like terms, rewrite the expression.
Alona [7]

Answer:

2x+x

Step-by-step explanation:

6 0
3 years ago
Find the next two terms: <br><br>1, 11, 111, 1111....​
Juli2301 [7.4K]

Answer:

1111, 11111

Step-by-step explanation:

5 0
3 years ago
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