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
mamaluj [8]
3 years ago
14

Find the coefficient of x2 in (3x2 – 5) (4 + 4x2), expand using algebraic expressions and answer

Mathematics
1 answer:
Scilla [17]3 years ago
7 0

Answer:

- 8

Step-by-step explanation:

Given

(3x² - 5)(4 + 4x²)

Each term in the second factor is multiplied by each term in the first factor, that is

3x²(4 + 4x²) - 5 (4 + 4x²) ← distribute both parenthesis

= 12x² + 12x^{4} - 20 - 20x² ← collect like terms

= 12x^{4} - 8x² - 20

The coefficient of the x² term is - 8

You might be interested in
Laura rents a movie for a flat fee of $2.00 plus an additional $0.50 for each night she keeps the movie. Choose the cost functio
daser333 [38]

Answer:

The cost function that represents this scenario is c(x) = 2 + 0.50x .

Option (b) is correct .

Step-by-step explanation:

As given

Laura rents a movie for a flat fee of $2.00 plus an additional $0.50 for each night she keeps the movie.

if x equals the number of nights Laura has the movie.


Than the cost function that represents this scenario .

c(x) =  Flat fee + Cost for  x equals the number of nights Laura has the movie.


c(x) = 2 + x × 0.50

c(x) = 2 + 0.50x

Therefore the cost function that represents this scenario is c (x) = 2 + 0.50x .

Option (b) is correct .

8 0
3 years ago
Read 2 more answers
You want to make a picture frame for a
docker41 [41]

Answer:

i think you'll need 1 foot 6 inches of wood

Step-by-step explanation:

7 0
4 years ago
GR10 MATH TEST HELP PLEASE​
ella [17]

Answer:

the answer is going to be a

8 0
3 years ago
How many 3 3/4 inch wires can be cut from a spool if wire that is 100 inches how much will be left over
Akimi4 [234]

How many 3\frac{3}{4} wires can be cut from a spool of wire that is 100 inches long?

How many inches will be left over?

Number of pieces of wires = length of spool of wire ÷ length of each piece of wire.

Number of pieces = 100 ÷ 3\frac{3}{4} = 100 ÷ \frac{15}{4}

That gives \frac{100 * 4}{15}

Simplifying gives \frac{400}{15} = \frac{80}{3}

This is equivalent to 26\frac{2}{3} pieces

So 26 pieces of wires can be cut from a spool and \frac{2}{3} of a piece will be left over.

6 0
3 years ago
If 4x+3x-2(x+5)=-9 then x=?
Nana76 [90]

Answer:

X=1/5

Step-by-step explanation:

7×-2×-10=-9

5×=-9 +10

5×/5=1/5

×=1/5

3 0
3 years ago
Other questions:
  • Find the perimeter. note that the arc represents a semicircle use 3.14
    8·1 answer
  • Assume the speed of vehicles along a stretch of I-10 has an approximately normal distribution with a mean of 81 mph and a standa
    12·1 answer
  • A study published in Health Magazine in 2010 suggested that a combination of high blood pressure and binge drinking have an incr
    13·1 answer
  • A classroom is 26ft wide, 32ft long, and 9ftt high. what is the volume of the room in cubic feet?
    15·2 answers
  • Can you please help me fill this out thanks
    12·1 answer
  • In the diagram above, Z1 = 40°.<br> Find the measure of Z2.<br> Z2 = [?]°
    12·2 answers
  • Plss help ill give 15 points and brainliest
    12·1 answer
  • Ben Brought a dozen doughnuts half of the doughnuts were glazed and weighed 10.2 ounces the other half were sprinkled and weight
    6·2 answers
  • What is the radius and diameter of the following circle? 7 cm Diameter = - Answer: Radius = Diameter = ​
    7·1 answer
  • How many pairs of two digit natural numbers have a difference equal to 50
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!