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
ella [17]
3 years ago
15

. If x = -1 and y = -2, what is the value of the expression 2x^2y - 3xy?

Mathematics
2 answers:
bekas [8.4K]3 years ago
8 0

Answer:

-4

Step-by-step explanation:

just plug in the numbers for each variable.

2(-1)^(2(-2)) - 3(-1)(-2) = 2 - 6 = -4

lbvjy [14]3 years ago
6 0

Step-by-step explanation:

You might be interested in
Solve. State the number of solutions.
Oksi-84 [34.3K]

Answer:

a. x=8

b.Step 1: Simplify both sides of the equation.

2(2x−2)=4x−4

(2)(2x)+(2)(−2)=4x+−4(Distribute)

4x+−4=4x+−4

4x−4=4x−4

Step 2: Subtract 4x from both sides.

4x−4−4x=4x−4−4x

−4=−4

Step 3: Add 4 to both sides.

−4+4=−4+4

0=0

Answer:

All real numbers are solutions.

c. Step 1: Simplify both sides of the equation.

3(x+1)=4x+7−x

(3)(x)+(3)(1)=4x+7+−x(Distribute)

3x+3=4x+7+−x

3x+3=(4x+−x)+(7)(Combine Like Terms)

3x+3=3x+7

3x+3=3x+7

Step 2: Subtract 3x from both sides.

3x+3−3x=3x+7−3x

3=7

Step 3: Subtract 3 from both sides.

3−3=7−3

0=4

all credit goes to mathpapa

5 0
2 years ago
1. You are going to make one of these bags from a roll of cloth 1 meter wide. What
maks197457 [2]

Answer:

1 cm

You are going to make one of these bags from a roll of cloth 1 meter wide. What

is the shortest length that you need to cut from the roll for the bag?

Step-by-step explanation:

8 0
2 years ago
If logc81=2 l o g c 81 = 2 , what is the value of c c ?
Alexxx [7]
<span>If logc81=2 then c=9

</span>
8 0
3 years ago
Tracy is running in a 5.25-kilometer race on Saturday. A marathon is approximately 42 kilometers. How many time as long as Tracy
Naddik [55]

Answer:

i needed points sorry

8 0
3 years ago
1/2 X plus X -15+1/2 X +100+ X -25 equals 540
Andrew [12]

Answer:

1/2 X + X -15 + 1/2 X + 100 + X -25 = 540

1/2x + x + 1/2x + x -15 + 100 -25 = 540

3 x + 60 = 540

3x + 60 - 60 = 540 - 60

3/3x = 480/3

x = 160

Step-by-step explanation:

1/2 X + X -15 + 1/2 X + 100 + X -25 = 540

1/2x + x + 1/2x + x -15 + 100 -25 = 540

3 x + 60 = 540

3x + 60 - 60 = 540 - 60

3/3x = 480/3

x = 160

7 0
3 years ago
Other questions:
  • HELP!! ASAP!!!!! Which system of equations below has infinitely many solutions?
    7·2 answers
  • Write the difference in factored form. (24x4 - 15x2 + 6x) - (10x4 + 5x2 - 4x)​
    5·1 answer
  • Which fraction is not equal to 2/3?
    12·2 answers
  • What are 3 completed examples for systems of equations?
    8·1 answer
  • If the rate of change of the graph of a linear equation is 4 and the y-intercept is (0, 8), what is the linear equation that rep
    8·1 answer
  • La cantidad de automóviles que pasaron por hora por una estación de peaje en una muestra de 8 hs es
    8·1 answer
  • A(5x + 3) = b + 15x<br><br> a = (?)<br> b = 5ax + 3a - 15x (?)
    5·2 answers
  • Rewrite the number in standard notation.1 times 10^8 power
    10·2 answers
  • For a school fundraiser Paul bought a big box of ducks and wrote prize amounts, in dollars on the bottom of each rubber duck. Th
    11·2 answers
  • (2x-7)-(4x^2+6x-3)+(x^2+4)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!