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
andreyandreev [35.5K]
3 years ago
11

Why does a negative times a negative equal a positive proof?

Mathematics
2 answers:
lisov135 [29]3 years ago
6 0
Because two negatives cancel each other out, resulting in a positive.
lorasvet [3.4K]3 years ago
4 0
The system is  two negatives cancel each other out, resulting in a positive.
You might be interested in
How much water conditioner for 2.5 gallon tank?
vivado [14]
If i'm correct you should add 0.5 mL to your 1 gallon tank, and I would say about 1.25 mL to your 2.5 gallon. It will not be extreme if you end up putting a little more in than you are supposed to. I'm not 100% because i haven't slept so my brain is being slow.
8 0
3 years ago
(1 point) In 7 years Harry and Sally would like to have $14000 for a down payment on a house. How much should they deposit each
den301095 [7]

Answer:

$110.37

Step-by-step explanation:

Assuming the monthly payment is made at the beginning of the month, the formula for the monthly payment P that gives future value A will be ...

... A = P(1+r/12)((1+r/12)^(nt) -1)/(r/12) . . . . n=compoundings/year, t=years

... 14000 = P(1+.11/12)((1+.11/12)^(12·7) -1)/(.11/12)

... 14000 = P(12.11)((1+.11/12)^84 -1)/0.11 ≈ P·126.84714 . . . . fill in the given values

... P = 14000/126.84714 = 110.37 . . . . . divide by the coefficient of P

They should deposit $110.37 at the beginning of each month.

6 0
3 years ago
C=-7/15 and x=2/5 c-4x write your answer in simplest form
pogonyaev

9514 1404 393

Answer:

  -31/15

Step-by-step explanation:

Put the numbers in the expression and do the arithmetic.

  c-4x=-\dfrac{7}{15}-4\cdot\dfrac{2}{5}=-\left(\dfrac{7}{15}+\dfrac{8}{5}\right)\\\\=-\left(\dfrac{7}{15}+\dfrac{24}{15}\right)=\boxed{-\dfrac{31}{15}}

__

Your graphing calculator can probably help with this.

5 0
3 years ago
543.28 in expanded notation
seropon [69]

Answer:

500+40+3+.2+.08= 543.28

Step-by-step explanation:

5 0
3 years ago
I need help on 12, I don't know how to make that an expression! Thanks! Please explain!
exis [7]
A rug maker is using a pattern that is a rectangle with a length of 96 inches and a width of 60 inches. The rug maker wants to increase each dimension by a different amount. Let l and w be the increases in the length and width. Write and simplify an expression for the perimeter of the new pattern.

p=2(96+l)+2(60+w)
This is the equation. p is for perimeter. (96+l) represents the original length plus the change in length. The 2 before (96+l) represents that there is one length on each side of the rectangle.
Same for the width. (60+w) represents the original width plus the change in width. The 2 before (60+w) represents that there is one width on each side of the rectangle.
The simplified equation is p=(192+2l)+(120+2w) (this is your answer)

I hope this helps!

3 0
3 years ago
Other questions:
  • Anyone know how to do 23 and 24? Help is appreciated!
    10·1 answer
  • 6xy in simplest form
    14·1 answer
  • Which is equivalent to 3 sqrt of 8​
    5·1 answer
  • There are 500 students at Jacob's school. Jacob wants to conduct a survey of the students at his school to determine the level o
    5·1 answer
  • Find the future value if £7400 is<br> invested for 6 years at 12.8% p.a.<br> Total
    15·1 answer
  • 4x + 3y = 1<br> x - 3y = -11
    14·2 answers
  • Type the correct answer in the box.
    11·1 answer
  • Can you guys check if my answer is right please? Will give brainiest to best answer
    13·1 answer
  • How many factors does the following term have? <br><br> 2xy
    6·1 answer
  • how many even numbers less than 1000 can be formed from the given digits 0,2,3,5; if repetition is not allowed ?​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!