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Charra [1.4K]
3 years ago
10

You paid $80 for a coat. It had been discounted 25%. What was the original price of the coat?

Mathematics
1 answer:
Zanzabum3 years ago
6 0

Answer:

85.6

Step-by-step explanation:

80/75=1.07

1.07*80=85.6

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A quadratic equation of the form 0 = ax2 + bx + c has one real number solution. Which could be the equation?
Fynjy0 [20]

Answer:

The equation showing this situation is  D=b^2-4ac=0

Step-by-step explanation:

Given : A quadratic equation of the form ax^2 + bx + c=0  has one real number solution.

To find : Which could be the equation?  

Solution :

A quadratic equation in form ax^2+bx+c=0 has a solution x=\frac{-b\pm\sqrt{b^2-4ac}}{2a} called a quadratic formula  in which the roots are one real,two real or no real is determine by discriminant factor.

Discriminant is defined as to determine the number of roots in a quadratic equitation has following rules :

1) If D=b^2-4ac>0 there are two real roots.

2) If D=b^2-4ac=0 there are one real roots.

3) If D=b^2-4ac there are no real roots.

According to question,

A quadratic equation of the form ax^2 + bx + c=0  has one real number solution.

So, The equation showing this situation is  D=b^2-4ac=0

6 0
3 years ago
Will the probabilities from an experiment with 20 trials be exactly the same if you repeat the experiment? (Explain your thinkin
trasher [3.6K]

Hello, each and every one of your 20 trials should be very similar to the one prior, as long as you keep the data the same, such as how much water you use, or the length of an object, etc.

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4 0
3 years ago
2. Given: A drug for the relief of asthma can be purchased
ycow [4]
Hey I hope you have a good day
5 0
2 years ago
Ginny is studying a population of frogs. She determines that the population is decreasing at an average rate of 3% per year.
Ket [755]

Answer:

The correct answer is C) f(x) = 1,200(0.97)/\x

Step-by-step explanation:

Hope this helps! :)

4 0
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The segments shown below could form a triangle 1 8 8
Marat540 [252]
Yes. 

To form a triangle every side must be smaller in length than the sum of the two other sides. 

For example: sides denoted by a,b,c
for a triangle to form
a<b+c
b<a+c
c<a+b
Thus in the case of the <em>Isosceles </em>triangle with side lengths 1,8,8 the rules aforementioned are fulfilled. This means that a triangle with said side lengths can exist.
3 0
3 years ago
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