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
Pie
3 years ago
6

PLEASE ANSWER

Mathematics
1 answer:
kvasek [131]3 years ago
8 0

\text{Difference of squares}\ a^2-b^2:\\\\4x^2-16=2^2x^2-4^2=(2x)^2-4^2\\\\\text{Difference of cubes}\ a^3-b^3:\\\\8x^3-1=2^3x^3-1^3=(2x)^3-1^3

You might be interested in
Determine if the linear system
zubka84 [21]

Answer:

b. The system is not in echelon form because the system is not organized in descending "stair step" pattern so that the index of the leading variables increases from the top to bottom.

Step-by-step explanation:

The given linear system has a equation which is not in echelon form. The echelon is a system which divides the data into rigid hierarchal groups. The given linear equation in not in echelon form as the leading variables are increased from top to bottom indicating descending stair step pattern.

4 0
3 years ago
What’s Distribute -x(5x+2)
MaRussiya [10]

Answer:

-5x^2-2x

Step-by-step explanation:

When distributing, you multiply the term outside the brackets to all the terms in brackets.

If the term outside the bracket is negative, then when distributing/opening the brackets, the signs of the terms changes.

So in this prob. -x would multiply to both +5x and +2

-x*5x+-x*2

∴-5x^2-2x

4 0
3 years ago
Read 2 more answers
This is past due, need help fast
Anika [276]

Answer:

Step-by-step explanation: 1 foot= 12 inches

so length 5.5 inches= 0.458 feet or 5.5/12

width 4 inches= 0.33 feet or 4/12

area 4x5.5= 1.833 feet or 22/12

8 0
3 years ago
John's parents purchased their first home in the 1980s with a 30-year
slega [8]

Answer:

Option A,$ 1,832.91   is correct

Step-by-step explanation:

The monthly payment can be computed using the below pmt formula i excel shown below:

=pmt(rate,nper,-pv,fv)

rate is the monthly rate on the mortgage which is 17.5%/12=0.014583333

nper is the number of months of payment i.e 30*12=360

pv is the amount of the loan which is $125,000

fv is the total amount of repayment which is unknown

=pmt(0.014583333 ,360,-125000,0)=$ 1,832.91  

The correct option is A,$ 1,832.91  which is the amount of money they need to pay back on the mortgage for 360 months

7 0
3 years ago
Find the product of (x^2+2x-3)(4x^2-5x+6)
Evgesh-ka [11]

Answer:

x^{4} + 3x³ - 16x² + 27x - 18

Step-by-step explanation:

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

x²(4x² - 5x + 6) + 2x(4x² - 5x + 6) - 3(4x² - 5x + 6)

Distribute all 3 parenthesis

= 4x^{4} - 5x³ + 6x² + 8x³ - 10x² + 12x - 12x² + 15x - 18

Collecting like terms

= 4x^{4} + 3x³ - 16x² + 27x - 18

5 0
3 years ago
Other questions:
  • If you reflect the point ( 4, 4) across the x-Axis, what will be the points new coordinates
    5·1 answer
  • A student wants to save $8000 for college in 5 years. How much should be put into an account that pays 5.2% annual interest comp
    14·1 answer
  • The graph below plots a function f(x): graph of line segment going through ordered pairs 0, 100 and 3, 220 If x represents time,
    7·2 answers
  • When asked to factor the x^2-121 a student gives the answer (x-11)(x-11) what is wron with this answer?
    7·2 answers
  • I am greater than 30 and less than 40. The sum of my digits is less than 5
    15·2 answers
  • Which equatlon represents the line that is parallel to y=3 and passes through (-2, -8)?​
    12·1 answer
  • V and 303 more equals 21
    14·1 answer
  • Analyze the diagram below and complete the instructions that follow. <br><br> Solve for y.
    7·1 answer
  • Help me out , plzzzzz!!
    12·1 answer
  • You are playing a board game with a spinner that has numbers 1, 2, 3, and 4 on
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!