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
Airida [17]
3 years ago
11

What is 4x squares minus 81

Mathematics
1 answer:
mafiozo [28]3 years ago
3 0

4 times 1 equals 4 then do 81 minus 4 which equals 77 so 77 is your answer

You might be interested in
What is the equation of the line passing through the points (Two-fifths, StartFraction 19 Over 20 EndFraction) and (one-third, S
Neporo4naja [7]

Answer:

  y = one-half x + three-fourths

Step-by-step explanation:

The 2-point form of the equation of a line can be used for starters.

  y = (y2 -y1)/(x2 -x1)(x -x1) +y1

  y = (11/12 -19/20)/(1/3 -2/5)(x -2/5) +19/20 . . . . fill in given values

  y = ((55 -57)/60)/((5 -6)/15)(x -8/20) +19/20 . . simplify a little

  y = (-1/30)/(-2/30)(x -8/20) +19/20 . . . . . . . . . . and a little more ...

  y = 1/2x -4/20 +19/20

  y = 1/2x +15/20

  y = 1/2x +3/4 . . . . line in slope-intercept form

8 0
4 years ago
Read 2 more answers
At 2 PM there were 13 seagulls on the beach. At 5 PM there were 70 seagulls. What is the constant rate of change
Olin [163]
The answer is 57 I hope I helped
8 0
3 years ago
I needa know the answer quick..ty
lakkis [162]

Answer:

in 6 days it grew 3 gramms?

Step-by-step explanation:

the plot is (6,3)

5 0
3 years ago
Midpoint of the segment between the points (−5,13) and (6,4)
Leokris [45]

Answer: (0.5,8.5)

Step-by-step explanation:

We need to use the following formula to find the Midpoint "M":

M=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})

Given the points (-5,13) and (6,4) can identify that:

x_1=-5\\x_2=6\\\\y_1=13\\y_2=4

The final step is to substitute values into the formula.

Therefore, the midpoint of the segment between the points (-5,13) and (6,4) is:

M=(\frac{-5+6}{2},\frac{13+4}{2})\\\\M=(\frac{1}{2},\frac{17}{2})\\\\M=(0.5,8.5)

6 0
3 years ago
Read 2 more answers
Please help. 15 points. Show all work. Thank you.
Sergio039 [100]
The last net has all of the requirements. All you have to do then is count, which means the vertices from the hexagon all add up to 12. The rectangles are supposed to encircle it to make a closed object, which gives it eight faces, hexagons included. 
8 0
3 years ago
Read 2 more answers
Other questions:
  • An employee at a state park has 53 photos of animals found at the park she wants to arrange the photos in rows so that every row
    14·1 answer
  • What is 3 3/8 X 4 1/3<br> express answer in simplest form<br> thanks in advance
    12·2 answers
  • Minh wrote the following number sentence 2.6 + 0.33= 59. Use estimation to show that Minh's answer is incorrect.
    11·1 answer
  • Canyu canoe Co. Rents canoes for $8 plus $3 per hour or any part of any hour. For how many hours can you rent a canoe if you wan
    12·2 answers
  • What is the volume of the cone to the nearest cubic millimeter? (Use ​π = 3.14)
    9·1 answer
  • A box contains 10 balls, of which 3 are red, 2 are yellow, and 5 are blue. Five balls are randomly selected with replacement. Ca
    10·1 answer
  • The table represents a function what is f(-2)
    10·1 answer
  • Is 16g + 10 - 4g and 20g + 10 equivalent
    15·1 answer
  • Alexandra wants to invest in an option that would help to increase her investment value by the greatest amount in 20 years. How
    5·1 answer
  • Homework due tomorrow pls help !!
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!