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vivado [14]
3 years ago
11

Write a situation in which positive and negative numbers are used to describe values that have opposite meaning. What does 0 rep

resent in this situation you created?
Mathematics
2 answers:
agasfer [191]3 years ago
7 0

Answer:

A fish is swimming in a pond 4.5 feet below the pond's top surface, while a falcon is flying in circles over the fish. Jimmy wants to know how many feet the falcon has to fly to reach the fish.

0 represents the pond's surface.

sertanlavr [38]3 years ago
3 0
Johnathan works part time on weekends at the movie theater while going to school during the week. His paycheck for this pay period was $225.

When he got up to go to school Monday morning his car would not start. His dad had the car towed to the mechanic and had the car repaired. The towing bill and repair bill totaled $225.

How much did Johnathan have left from his paycheck?

$225 + (-$225) = 0

0 is the answer when you add opposites
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A scientist invents a car that can travel for many hours without stopping for fuel. The car travels around a track at 54 miles a
Alla [95]

Answer: 1,296 m iles

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:  

Distance = Speed rate x time

  • speed rate = 54 miles per hour
  • time = 24 hours

Replacing with the values given and solving for D (distance)

D = 54 mph x 24 h = 1,296 m

The car traveled 1,296 miles

Feel free to ask for more if needed or if you did not understand something.

3 0
3 years ago
How do you solve the equation 2cos^2 - cosx = 0 for all solutions?
exis [7]

Answer:

<em>π/2 and π/3</em>

Step-by-step explanation:

Given the equation 2cos²x - cosx = 0, to find the solution to the equation, we will follow the following step.

let P = cosx

The equation becomes 2P²-P = 0

P(2P-1) = 0

P = 0 and 2P-1 = 0

P= 0 and P = 1/2

Since P = cosx

cosx = 0 and cos(x) =  1/2

If cos(x) = 0

x = cos⁻¹0

x = 90⁰

x = π/2

If cos(x) = 1/2

x = cos⁻¹1/2

x = 60⁰

x = π/3

<em>Hence the solutions to the equation are π/2 and π/3.</em>

7 0
3 years ago
How to prove that square root of x where x is rational is rational?
Verdich [7]

In general, you cannot prove that because it is not true.

2 is rational. √2 is not.

5 0
3 years ago
Rewrite the equation y - 3 = 23(x - 2) in standard form.
jeka57 [31]

Answer:

I believe it would be y-3=23x-2

7 0
3 years ago
2/3 of a class are girls what is the ratio of girls to boys in class answer simplest form
77julia77 [94]

Answer:

2:1

Step-by-step explanation:

for every 2 girls there is 1 boy.

8 0
3 years ago
Read 2 more answers
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