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
VashaNatasha [74]
3 years ago
6

Multiply these polynomials.

Mathematics
1 answer:
maksim [4K]3 years ago
4 0
When we multiply the polynomials we will get:
(5x^2+2x)(3x^2-7x+4)
=5x^2(3x^2-7x+4)+2x(3x^2-7x+4)
=15x^4-35x^3+20x^2+6x^3-14x^2+8x
=15x^4+(6x^3-35x^3)+(20x^2-14x^2)+8x
=15x^4-29x^3+6x^2+8x
The correct answer is C
You might be interested in
What is the variable in the expression 2X - 25
SpyIntel [72]
The variable is x.

Hope that helps :)
8 0
2 years ago
The numerical coefficient in -6x²y² is:
Lubov Fominskaja [6]

Answer:

-6 is the numeral cofficient

3 0
2 years ago
Read 2 more answers
In 1998, Cathy's age is equal to the sum of the four digits in the year of her birthday, then how old was Cathy in 1998?
ycow [4]

Answer:

<em>Cathy was born in 1980 and she was 18 years old in 1998</em>

Step-by-step explanation:

<u>Equations</u>

This is a special type of equations where all the unknowns must be integers and limited to a range [0,9] because they are the digits of a number.

Let's say Cathy was born in the year x formed by the ordered digits abcd. A number expressed by its digits can be calculated as

x=1000a+100b+10c+d

In 1998, Cathy's age was

1998-(1000a+100b+10c+d)

And it must be equal to the sum of the four digits

1998-(1000a+100b+10c+d)=a+b+c+d

Rearranging

1998=1001a+101b+11c+2d

We are sure a=1, b=9 because Cathy's age is limited to having been born in the same century and millennium. Thus

1998=1001+909+11c+2d

Operating

88=11c+2d

If now we try some values for c we notice there is only one possible valid combination, since c and d must be integers in the range [0,9]

c=8, d=0

Thus, Cathy was born in 1980 and she was 18 years old in 1998. Note that 1+9+8+0=18

5 0
3 years ago
PLEASE HELP!
eduard

Answer:

B) 2828.427g

Step-by-step explanation:

Hope this helps!

7 0
2 years ago
Read 2 more answers
Find the slope of the line that passes through Point A (7, 4) and Point B (3, 2), using the formula m=y2-y1/x2-x1
Furkat [3]

Answer:

The slope, or m, is equal to 1/2.

Step-by-step explanation:

m = y2 - y1/x2 - x1

m = 2 - 4/3 - 7

m = -2/-4

m = 1/2

8 0
2 years ago
Other questions:
  • Given that a = −4, b = −3. c = −2, d = −1, which gives the correct order from least to greatest for the rational numbers on a nu
    7·2 answers
  • The clerk in a fabric store cuts 7 7/8 yards of fabric from a bolt containing 26 5/8 yards of fabric. How much fabric is left on
    9·1 answer
  • solve the equation 4x — 3y = y —12 for x if y is 6. Make sure to first solve the equation for x in terms of y. X= ________
    5·2 answers
  • Through: (4, -2), parallel to y = - 3/4x - 4
    9·1 answer
  • If a fair coin is tossed 4 times, there are 16 possible sequences of heads (H) and tails (T). Supposethe random variable X repre
    15·1 answer
  • Dramon has some quarters and pennies. He has 1 quarter for every 5 pennies. He graphs this relationship where x represents the n
    10·1 answer
  • Please help picture is there
    12·1 answer
  • Help me please!!!!!!!
    9·1 answer
  • Evaluate g(x)=3x when x=-2,0and 5
    9·1 answer
  • graph each system of equations to find its solution. then, prove that the caution is true In a check by substituting it into bot
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!