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
Dima020 [189]
3 years ago
5

Could you explain why the answer 125 was supposed to be negative while my answer 81 was correct?

Mathematics
1 answer:
hichkok12 [17]3 years ago
5 0

Answer:

Step-by-step explanation:

Realize what (-5)^3 means

(-5)(-5)(-5)

25(-5)

-125

meanwhile

(-9)^2 is

(-9)(-9)

81

Basically a negative times a negative is always positive, but when a negative number is cubed (or raised to any odd exponent for that matter) the product will be negative.

You might be interested in
Use three fours to make 11.
mr Goodwill [35]
4 + 4 + 4 - 1 = 11? Was it supposed to be an equation? I am confused.
7 0
3 years ago
What multiplies to give you 15 and adds to give you -8?
Nitella [24]

Answer:

The system of equations is:

        x + y = 15

           xy = 15

Step-by-step explanation:

solve the first for y and substitute in the second:

            y = 15-x

      x(15-x) = 15

     15x - x� = 15

15x - x� - 15 = 0

-x� + 15x - 15 = 0

x� - 15x + 15 = 0

7 0
2 years ago
Read 2 more answers
Warren brought $41.50 to the art supply store. He bought a brush, a sketchbook, and a paint set. The brush was 1 6 as much as th
melomori [17]

Answer:

Warren paid $2.5 for the brush, $15 for the sketchbook and $20 for the paint set.

Step-by-step explanation:

If Warren went to the store with $41.5 and left with only $4 then the total amount he spent on the store was:

total spent = 41.5 - 4 = 37.5

Since he bought a brush, a sketchbook and a paint set we have:

brush + sketchbook + paint = 37.5

The prices of each item are related in the following manner:

brush = (1/6)*sketchbook

sketchbook = (3/4)*paint

brush = (1/6)*(3/4)*paint = (3/24)*paint = (1/8)*paint

Using these expressions on the one that represents the total value we will be abble to have only one variable, paint. We have:

(1/8)*paint + (3/4)*paint + paint = 37.5

(1/8)*paint + (6/8)*paint + (8/8)*paint = 37.5

(15/8)*paint = 37.5

paint = 37.5/(15/8) = 37.5*(8/15) = 20

brush = (1/8)*paint = (1/8)*20 = 2.5

sketchbook = (3/4)*paint = (3/4)*20 = 15

Warren paid $2.5 for the brush, $15 for the sketchbook and $20 for the paint set.

6 0
3 years ago
Read 2 more answers
If Gloria were to paint her living room alone, it would take 4 hours. Her sister Angela could do the job in 6 hours. How many ho
Aleksandr-060686 [28]

Answer:

2 hours and 24 minutes

Step-by-step explanation:

1/6 + 1/4 = 2/12 + 3/12 = 5/12

5/12 = 1/x

5/12x = 1

5x = 12

x = 2.4

2 hours, 24 minutes

4 0
2 years ago
What is the slope of the line passing through the points (3,10)and(1,15)
goldfiish [28.3K]
Y^2-y^1/x^2-x^1
15-10/1-3
slope = -5/2
5 0
3 years ago
Read 2 more answers
Other questions:
  • How to work it out now!!
    15·1 answer
  • h/4=6/7 (this is written as a fracton) my answers are A.) h=7/24 B.)h=3/4 C.)h= 3 3/7 or D.)h+7/9
    5·2 answers
  • Hey guys since nobody ever helps me and my mom doesn’t I need help on this assiment thanks :)
    15·1 answer
  • How do you write 7/8 as a fraction?
    9·2 answers
  • What are the real numbers for x^2-4x+4=0
    5·1 answer
  • What is the remainder when f(x) = x^4 -8x^2 + 10x + 22 is divided by x + 3
    9·1 answer
  • The martins swimming pool is a square and is in the center of a square plot that is 33 meters on a side. They have 1025 square m
    9·1 answer
  • Analyze the diagram below and complete the instructions that follow.<br><br> Find the value of x.
    11·1 answer
  • C) Out of 700 full marks rumba got 250 markes failed 30 marks what is<br>the pass percentage?​
    13·1 answer
  • Which shows one way the equation can be represented in words? StartFraction 5 over 8 EndFraction z (negative 2. 5) = 2. 5 Five-e
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!