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
Vsevolod [243]
3 years ago
10

Which expression is equivalent to 4(9x2−2)? 36x2−10−2 16x2+14−20x2−2 18x2−12−18x2+2 30x2−10+6x2+2

Mathematics
2 answers:
Snowcat [4.5K]3 years ago
6 0

Answer:

4(9×2-2)

= 36×8-8

= 288-8

= 280

Yanka [14]3 years ago
3 0

Answer:

the answer is 36x^2-10+2

Step-by-step explanation:

4(9x^2-2)=36x^2-8=36x^2-10+2

You might be interested in
B) What is the value of f(n-1)?
Natasha_Volkova [10]

Answer:

Add information

Step-by-step explanation:

According to mu understanding, this is the part (B) of the question. If you could provide the first part, I can complete it because some useful information is left out.

3 0
3 years ago
A paper cup shaped like a cone has a diameter of 6 centimeters and a slant height of 7.5 centimeters. About how much paper is ne
liq [111]

Answer:

22.5 cm^2

Step-by-step explanation:

Amount of paper is going to be measured in area, so we want the surface area of the cone.  Since it is a cub it doesn't have a base, so we don't need to count it.  

Area of the cone without the base, or what is called the lateral area is pi*r*s where r is the radius and s is the slant height.  and of course radius is d/2 where d is the diameter.  so let's plug it in.  We know diameter is 6 and slant height is 7.5

SA = pi * r * s

SA = pi * d/2 * s

SA = pi * 6/2 * 7.5

SA = 22.5 cm^2

So you will need 22.5 square centimeters of paper.

4 0
1 year ago
How does graphing linear inequalities differ from graphing linear equations?​
Ivan

Explanation:

When the inequality symbol is replaced by an equal sign, the resulting linear equation is the boundary of the solution space of the inequality. Whether that boundary is included in the solution region or not depends on the inequality symbol.

The boundary line is included if the symbol includes the "or equal to" condition (≤ or ≥). An included boundary line is graphed as a solid line.

When the inequality symbol does not include the "or equal to" condition (< or >), the boundary line is not included in the solution space, and it is graphed as a dashed line.

Once the boundary line is graphed, the half-plane that makes up the solution space is shaded. The shaded half-plane will be to the right or above the boundary line if the inequality can be structured to be of one of these forms:

  • x > ...   or   x ≥ ...   ⇒ shading is to the right of the boundary
  • y > ...   or   y ≥ ...   ⇒ shading is above the boundary

Otherwise, the shaded solution space will be below or to the left of the boundary line.

_____

Just as a system of linear equations may have no solution, so that may be the case for inequalities. If the boundary lines are parallel and the solution spaces do not overlap, then there is no solution.

_____

The attached graph shows an example of graphed inequalities. The solutions for this system are in the doubly-shaded area to the left of the point where the lines intersect. We have purposely shown both kinds of inequalities (one "or equal to" and one not) with shading both above and below the boundary lines.

6 0
3 years ago
Fred buys flags from a manufacturer for f dollars
Brilliant_brown [7]

Answer:0.26

How did i get that answer you ask?

i divide

6 0
2 years ago
Fred has 45 books. Sally has 27 times more books than Fred. How many books does Sally have?
hodyreva [135]

Answer:

fred = 45 books

sally has 27 times more book than fred

sally = 45 X 27

= 1215 books

5 0
3 years ago
Other questions:
  • All help is appreciated! If sin²(32°) +cos² (M) = 1, then M equals?
    12·1 answer
  • Given the following diagram, name an obtuse angle.<br><br> ∠ APW<br> ∠ WPB<br> ∠ APZ<br> ∠ ZPW
    6·2 answers
  • Find the value of x.
    9·2 answers
  • GEOMETRY WILL MARK BRAINLIEST IF RIGHT HELP!!!
    12·1 answer
  • 3 ÷ 1/8 show your work on paper! :D
    5·1 answer
  • Find the number of five-digit numbers which are not divisible by 5?
    13·1 answer
  • Find the remainder when x³ - ax² + 6x - a is divided by x - a​
    7·1 answer
  • PACK is a rectangle with a perimeter of 40 units. Find the measure of angle O to the nearest degree.
    12·1 answer
  • Explain how to use a model to represent the division of two fractions.
    14·1 answer
  • A map of your town has a scale of 1 inch to 0.25 miles. There are two roads that are 5 inches apart on the map. What is the actu
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!