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
Gwar [14]
1 year ago
9

Combine the terms in the given polynomial then evaluate for x=3, and y=-1

Mathematics
1 answer:
Novay_Z [31]1 year ago
6 0
Answer:xy^2+3x^2y;\text{  -24}

Explanation:

The given expression is:

xy+3xy^2-2xy+3x^2y-2xy^2+xy

Combine like terms

xy+xy-2xy+3xy^2-2xy^2+3x^2y

Simplify the resulting expression

\begin{gathered} 2xy-2xy+3xy^2-2xy^2+3x^2y \\  \\ xy^2+3x^2y \end{gathered}

Substitute x = 3 and y = -1 into the simplified expression

\begin{gathered} xy^2+3x^2y \\  \\ 3(-1)^2+3(3)^2(-1) \\  \\ 3(1)+(-27) \\  \\ 3-27 \\  \\ =-24 \end{gathered}

You might be interested in
Write 108.92 in expanded form
Kitty [74]
Sorry if my writing is sloppy

5 0
3 years ago
A study was conducted to determine if the salaries of librarians from two neighboring cities were equal. A sample of 15 libraria
kow [346]

Answer:

For the first city, the 95% confidence interval would be:

28,900 +/- 2300 x 3 = 28,900 +/-6900$

For the second city, the 95% confidence interval would be:

30,300 +/- 2100 x 3 = 30,300 +/- 6300$

5 0
3 years ago
The quotient rule for exponents states that bm bn=​_______, b≠0 . When dividing exponential expressions with the same nonzero​ b
wariber [46]

Answer:

The quotient rule for exponents states that b^{m}\div b^{n}=b^{m-n}.

When dividing exponential expressions with the same nonzero​ base, <u>subtract</u> the exponents.

Step-by-step explanation:

Some rules to solve exponents are:

  • x^{0}=1
  • (x^{m})^{n}=x^{mn}
  • x^{-n}=\frac{1}{x^{n}}
  • x^{m}\cdot x^{n}=x^{m+n}
  • \frac{x^{m}}{x^{n}}=x^{m-n}

The quotient rule for exponents states that:

b^{m}\div b^{n}=b^{m-n}.

When dividing exponential expressions with the same nonzero​ base, <u>subtract</u> the exponents.

3 0
3 years ago
John has 6/8 of pie left after a party. He bakes 1/6 times the pie. How many pie does he have now?
asambeis [7]
The answer is 0.125 of a pie left
3 0
3 years ago
Read 2 more answers
2x+3y=1, -x+2y=-4 solve using substitution method
ollegr [7]

Step-by-step explanation:

1) 2x+3y-3y=1-3y. -x+2y= -4

2x/2=1-3y/2. -(1-3y/2)=-4

x=1-3y/2. -1+3y/2= -4

x=1-3(-2)/2 3y/2= -4+1

x=1+6/2 3y/2×2/3= -3×2/3

x=7/2 y= -2

S.s{ 7/3,-2}

2). -4x-6y+6y=7-6y. 4x+y= -2

-4x/-4=7-6y/-4. 4(-7-6y/4)+y= -2

x= -7-6y/4. -7-6y+y = -2

x= -7-6/4 -5y/5= 5/5

x=-13/4 y= 1

S.s { -13/4, 1 }

8 0
3 years ago
Other questions:
  • Which numbers are perfect squares? Check all that apply.
    14·2 answers
  • What is the solution of 3x+y=2 &amp; 4y=12-12x?
    6·1 answer
  • The sum of three natural numbers is 720. The second number is 2 times larger than the first and 105 smaller than the third numbe
    7·1 answer
  • Kevin has $24 to buy a gift for his cousin . He found a gift for $22. With 5% sales tax added on. will Kevin have enough money t
    8·1 answer
  • Which answer is it ?
    14·1 answer
  • Imagine you have some workers and some handheld computers that you can use to take inventory at a warehouse. There are diminishi
    8·1 answer
  • At a greengrocer, two bananas and one apple cost ?1.16 and one banana and one apple cost ?0.71. How much does one apple cost?
    5·1 answer
  • In order to determine students’ preferences, Ms. Lewis took a random survey of 60 high school students and found that 42 of them
    8·1 answer
  • (15y+27)
    13·1 answer
  • Help and get correct answer for brainiest!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!