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
FromTheMoon [43]
1 year ago
6

4x²-9y², 8x³ - 27y³ and (2x-3y)²​

Mathematics
1 answer:
Effectus [21]1 year ago
5 0

Step-by-step explanation:

I am only sure about the first one but as for the rest I am not really but I tried...if you need explanations to the first one feel free to ask me

You might be interested in
Which is heavier: 500 pounds of feathers or 500 pounds of lead?
spayn [35]
They weigh the same
5 0
3 years ago
Read 2 more answers
Hellppp me this is hard​
ad-work [718]

Answer:

f

Step-by-step explanation:

its is that because it would mean he would be going 65 whuch its asking for a general speed.

8 0
3 years ago
Find the angle θ between u = <7, –2> and v = <–1, 2>.
Dmitry_Shevchenko [17]

The angle between two vectors is:

CosФ = u - v / Magnitude(u) x magnitude(v)

Magnitude of u = SQRT(7^2 + -2^2) = SQRT(49 +4) = SQRT(53)

Magnitude of v = SQRT(-1^2 +2^2) = SQRT(1 +4) = SQRT(5)

u x v = (7 x -1) + (-2 x 2) = -7 + -4 = -11

cosФ = -11 / sqrt(53) x sqrt(5)

cosФ = -11sqrt265) / 265

Ф =cos^-1(-11sqrt265) / 265)

Ф=132.51 degrees.

7 0
3 years ago
Read 2 more answers
Simplify 270 ÷ 3[(4 - 3)3 - (-9)] - 53
Andreyy89
270 / 3 ( (4 - 3) 3 - (-9) ) - 53
270 / 3 (1 x 3 - (-9) ) - 53
270 / 3 (3 + 9) - 53
270 / 3 x 12 - 53
In PEMDAS, with multiplication and division, you must go left to right, not multiplication then division.
90 x 12 - 53
1080 - 53
1027 is your answer
4 0
3 years ago
Read 2 more answers
Using the given zero, find one other zero of f(x). i is a zero of f(x).= x4 - 2x3 + 38x2 - 2x + 37.
statuscvo [17]
If i is a zero, -i is also a zero.
The way you get a complex zero is by taking the square root of a negative number. Taking the sqrt (-1) = + and - i
4 0
3 years ago
Other questions:
  • What is the product written in scientific notation?
    12·1 answer
  • PLS HELP BEST ANSWER GETS BRAINLIEST
    12·1 answer
  • I need someone to help me solve this problem <br><br><br> 7/b+5=10/5
    9·2 answers
  • The minimum monthly payment for Andrew's credit card is 2% of his balance or $20, whichever is higher. If Andrew's balance at th
    11·2 answers
  • Which term is any number that can be shown as the quotient of two integers?
    6·2 answers
  • A lock has 60 digits, and the combination involves turning right to the first number, turning left to the second number, and tur
    13·1 answer
  • What is \text{P(not }3)P(not 3)start text, P, left parenthesis, n, o, t, space, end text, 3, right parenthesis? If necessary, ro
    9·1 answer
  • Select the solutions to the graph from the following points. Select three that apply
    12·2 answers
  • When Sandy and Allen's mother decorates the house for a holiday by herself, it takes her 5 hours. When both Sandy and Allen help
    11·2 answers
  • Find the surface area of this rectangle prism L=6 H=6 W=4​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!