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
Serga [27]
3 years ago
13

Divide 9x^2-21x-20 by x-1

Mathematics
2 answers:
tekilochka [14]3 years ago
7 0
Answer:

1) quotient:  9x - 12
2) remainder: - 32

Explanation:

I will use short division, which consists in using just the coefficients.

This is the full operation:

  literal            x^2      x         0
 coefficient   | 9      - 21     - 20
                    |
                 1 |            9       - 12
                 -------------------------------------
                      9      -12      - 32

Result:

1) quotient:  9x - 12
2) remainder: - 32

You can prove the result by multiplyin (9x - 12) times (x - 1) and then adding  the remainder (-32).

=> (9x - 12) (x - 1) - 32 = 9x^2 - 9x - 12x + 12 - 32 = 9x^2 - 21x - 20 which proves the answer.
olganol [36]3 years ago
4 0
9 x^{3}-30 x^{2} +x+20

You might be interested in
Convercion haxadecimal al decimal 36A, 98D, 5F, 85E, 1B.
ad-work [718]

Answer:

874, 2445, 95, 27

Step-by-step explanation:

0 = 0

1 = 1

2 = 2

3 = 3

4 = 4

5 = 5

6 = 6

7 = 7

8 = 8

9 = 9

A = 10

B = 11

C = 12

D = 13

E = 14

F = 15

36A = 3 * 16^2 + 6 * 16^1 + 10 * 16^0 = 874

98D = 9 * 16^2 + 8 * 16 + 13 = 2445

5F = 5 * 16 + 15 = 95

1B = 1 * 16 + 11 = 27

4 0
3 years ago
What is the area of the following parallelogram in square centimeters?
asambeis [7]

Answer: For the firstone i think it is A but idk for the second one.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
I NEED HELP PLEASE HELP ME
spin [16.1K]

Answer:

4/25

Step-by-step explanation:

8/10 = 4/5

2/10 = 1/5

We can multiply these 2 events because they do not depend on each other.

1/5* 4/5 = 4/25

4 0
3 years ago
14.4 A Book and a Cake A book costs $45. Sales tax on the book is 7%. Write two different expressions that represent the final c
snow_tiger [21]

Answer: 1. $45*1.07 | $45(1.07) 2. (0.85)*32 represent the final price of the cake in dollars because (0.85) is the 15% off in decimals.

Step-by-step explanation:

1 if you multiply 45 by 1.07 it will be 48.15 and that's the final cost of the book, same with $45(1.07) is just another way to represent the multiplication.

2 As I said the 0.85 represent the 15% off, and when you multiply it will be less.

3 0
3 years ago
A 50-fluid ounce bottle of laundry detergent washes 32 loads of laundry. A 100-fluid ounce bottle washes 60 loads of laundry. Ar
Alex

Answer:

I think that the answer in NO

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Find the limit and confirm using the Sandwich Theorem: lim x->infinity (1 - cosx) / (x^2)
    7·1 answer
  • Find the measure of angle B.
    9·1 answer
  • felipe is training to run a marathon. today he ran 24 miles in 2.5 hours. at what rate did felipe run today?
    12·2 answers
  • If 5+20-22-3x = 10-2-2x + 5, what is the value of x?
    7·1 answer
  • Graph y=2x+3 and it's inverse
    7·1 answer
  • 4K on tiktok? pls follow<br> at peachyxkylee
    7·2 answers
  • Which numbers are integers?Check all that apply.
    10·1 answer
  • 1/3 of 2 feet=_________inches
    11·2 answers
  • What geometric figure is the union of two non-collinear rays AB and AC? AC?
    9·1 answer
  • On a farm, there is a grain silo.The silo is cylindrical with a tile roof. The silo has a diameter of 8 metres and is 6 metres t
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!