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
Mnenie [13.5K]
3 years ago
13

Q3. A + B = 0 and AB = - 36. What is the value of A-B?

Mathematics
2 answers:
Elena-2011 [213]3 years ago
6 0

Answer:

A - B = ± 12

Step-by-step explanation:

Given

A + B = 0  → (1)

AB = - 36 → (2)

Subtract B from both sides of (1)

A = - B ← substitute into (2)

- B(B) = - 36 ( multiply both sides by 0 1 )

B² = 36 ( take square root of both sides )

B = ± 6

Substitute into (1)

If B = 6 then A =- 6 and A-B = - 6 - 6 = - 12

If B = - 6 then A = 6 and A - B = 6 - (- 6) = 6 + 6 = 12

BlackZzzverrR [31]3 years ago
3 0

Step-by-step explanation:

A + B = 0

A = -B

(-B)B) = -36

-B^2 = -36

B^2 = 36

B = 6, -6

So, A = -6, 6

A - B = -12

or

A - B = 12

You might be interested in
What is 11.375 in faction
Anton [14]
11 3/8 would be the simplified version and 91/8 would be the other way.
6 0
3 years ago
Read 2 more answers
Factoring Quadratic Expressions:<br> 5p^2 - p - 18
Dennis_Churaev [7]
5 p^{2} -p-18

5 p^{2}-10p+9p-18

5p(p-2)+9(p-2)

(p-2)(5p+9)
3 0
3 years ago
Another quadratic formula and the discriminant problem that I am stuck on. the answer is {2, 1/2}
Alina [70]

Answer:

See explanation

Step-by-step explanation:

2b^2-5b+2=0

b=\dfrac{5\pm\sqrt{25-16}}{4}=\dfrac{5\pm3}{4}=\dfrac{8}{4}, \dfrac{2}{4}=2,1/2

Hope this helps!

7 0
3 years ago
Amanda is a cabinetmaker. She makes cabinets using one of three types of wood: birch, maple, or cherry. She can finish each type
padilas [110]
Assume that each material in each category has an equal chance of being selected.

Categories:
(a) Type of wood used to make the cabinet: birch, maple, cherry.
     Each type of wood has a probability of 1/3 to be selected.
(b) Type of finish: transparent, semi-transparent.
    Each type of finish has a probability of 1/2 to be selected.
(c) Knob: bronze, steel, wood.
     Each material has 1/3 probability to be selected.

Each event (selecting material for the cabinet, for the finish, and for the knob) is an independent event.

Therefore
Probablity(birch wood AND bronze knob) = (1/3)*(1/3) = 1/9
Probability(wood knob) = 1/3
Probability(transparent stain) = 1/2
Probability(cheryy wood AND semi-transparent stain) = (1/3)*(1/2) = 1/6



6 0
3 years ago
A) f(4) =
Marianna [84]

Answer:

following. Write your answer as fraction in lowest terms. (f + g)(-5) = d. [4 pt.] ...

10 pages·

Step-by-step explanation:

marke me as brainst plz

8 0
3 years ago
Other questions:
  • diana is earning money by mowing lawns. she charges $15 per yard. lawn mower rental costs $30. what is the minimum amount of yar
    6·2 answers
  • Round to the nearest ten thousand and then subtract
    12·1 answer
  • What are the answers for the chart in number 4,5,6
    12·1 answer
  • Using the chart above, find the total amount and amount of interest paid in the following compound interest problems.
    10·1 answer
  • if frans fudge recipe calls for 2 1/2 cups of sugar and she increases it by 2/5 of a cup, how much sugar does she use
    11·1 answer
  • What line model matches the expression
    11·1 answer
  • When rounding a number what do u do with the digits to the right of the place you are rounding?
    15·1 answer
  • The zero-product principle states that if AB = 0, then
    13·1 answer
  • Estimate √53 between two numbers to the tenths place.
    12·1 answer
  • Ken has just retired. His Roth IRA has a present value of $524,856.00 and has an interest rate of 3.4%, compounded annually. In
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!