1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sveta [45]
3 years ago
5

Arrange the following polynomial into descending order for x, then interpret the degree of the 3rd term. 2xy4 + 2x2y − 3y2 + 10x

3 a. 1. b. 2. c. 3. d. 5.
Mathematics
2 answers:
Darina [25.2K]3 years ago
8 0
The arrangement should be based on the decreasing degree of the terms which may be determined by the variable x as it should come first in alphabetical order. The polynomial is then,
                         10x³ + 2x²y + 2xy^4 - 3y²
The degree is equal to the sum of the exponents. Thus, the answer is 5 and it is letter D. 
In-s [12.5K]3 years ago
5 0

Answer:

A=5

Step-by-step explanation:

You might be interested in
Can someone help me on number 8. I tried to do it, but I can’t seem to find the right answer.
qaws [65]

Check the picture below.

4 0
3 years ago
4. Using the geometric sum formulas, evaluate each of the following sums and express your answer in Cartesian form.
nikitadnepr [17]

Answer:

\sum_{n=0}^9cos(\frac{\pi n}{2})=1

\sum_{k=0}^{N-1}e^{\frac{i2\pi kk}{2}}=0

\sum_{n=0}^\infty (\frac{1}{2})^n cos(\frac{\pi n}{2})=\frac{1}{2}

Step-by-step explanation:

\sum_{n=0}^9cos(\frac{\pi n}{2})=\frac{1}{2}(\sum_{n=0}^9 (e^{\frac{i\pi n}{2}}+ e^{\frac{i\pi n}{2}}))

=\frac{1}{2}(\frac{1-e^{\frac{10i\pi}{2}}}{1-e^{\frac{i\pi}{2}}}+\frac{1-e^{-\frac{10i\pi}{2}}}{1-e^{-\frac{i\pi}{2}}})

=\frac{1}{2}(\frac{1+1}{1-i}+\frac{1+1}{1+i})=1

2nd

\sum_{k=0}^{N-1}e^{\frac{i2\pi kk}{2}}=\frac{1-e^{\frac{i2\pi N}{N}}}{1-e^{\frac{i2\pi}{N}}}

=\frac{1-1}{1-e^{\frac{i2\pi}{N}}}=0

3th

\sum_{n=0}^\infty (\frac{1}{2})^n cos(\frac{\pi n}{2})==\frac{1}{2}(\sum_{n=0}^\infty ((\frac{e^{\frac{i\pi n}{2}}}{2})^n+ (\frac{e^{-\frac{i\pi n}{2}}}{2})^n))

=\frac{1}{2}(\frac{1-0}{1-i}+\frac{1-0}{1+i})=\frac{1}{2}

What we use?

We use that

e^{i\pi n}=cos(\pi n)+i sin(\pi n)

and

\sum_{n=0}^k r^k=\frac{1-r^{k+1}}{1-r}

6 0
3 years ago
Katie sewed costumes for the high school's annual play. She spent the following number of hours on each dress. What is the mean
Angelina_Jolie [31]
About 2.91 hours rounded
5 0
3 years ago
Read 2 more answers
$3,000 after 5 years at an interest rate of 3.0 % is the nearest cent.
vladimir2022 [97]
<span>$ 3,450.00

</span>Equation:
A = P(1 + rt)
6 0
3 years ago
Read 2 more answers
The triangle has side lengths 10cm, 24cm, and 28cm, is it a right triangle? Explain please i dont understand
Nitella [24]

In every right triangle, if you add up the squares of the two
shorter sides, you get the square of the longest side. If you
don't then it's not a right triangle.

10² = 100
24² = 576

100 + 576 = 676

676 is the square of 26. 
It's NOT the square of 28.

So 10 - 24 - 28 is not a right triangle.


8 0
3 years ago
Read 2 more answers
Other questions:
  • I WILL GIVE BRAINLIEST
    15·1 answer
  • Question 16 please...
    10·1 answer
  • Question in picture above
    5·1 answer
  • Unit rate for 150 students in 3 classes.
    12·2 answers
  • Identify the domain of the function shown in the graph
    15·2 answers
  • Logan borrowed $24,318.79 and will have to repay a total of $27,174.25. How much interest will he pay?
    15·1 answer
  • Plz help I’m confused<br><br> -3. (8 + 1) +224 - 8
    8·1 answer
  • Find the solution of the system of equation 2x+2y=2 5x+4y=2
    14·1 answer
  • Х 9 17 25 33 -6 -24 -96 -384 Is the relationship linear , exponential , or neither?
    14·2 answers
  • What is the equation for <br> 4,2 and 9,12
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!