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Angelina_Jolie [31]
3 years ago
8

A radio is on sale for $50. If this price represents a 10% discount from the original price, what is the original price to the n

earest nickel?
Mathematics
1 answer:
Allushta [10]3 years ago
3 0
$500 was the radio's original price
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Which equation has the steepest parabola?
ICE Princess25 [194]

Given:

The equations of parabolas in the options.

To find:

The steepest parabola.

Solution:

We know that, if a parabola is defined as

(y-k)=n(x-h)^2

Then, the greater absolute value of n, the steeper the parabola.

It can be written as

\dfrac{1}{n}(y-k)=(x-h)^2

p(y-k)=(x-h)^2

where p=\dfrac{1}{n}, the smaller absolute value of p, the steeper the parabola.

Now, find the value of |p| for eac equation

For option A, |-0.5|=0.5

For option B, |5|=5

For option C, |8|=8

For option D, |-10|=10

Since, the equation is option A has smallest value of |p|, therefore, the equation (x+2)^2=-0.5(y+3) represents the steepest parabola.

Hence, the correct option is A.

7 0
2 years ago
Sonya made a graph showing the first ten minutes of her drive to the movies.
Agata [3.3K]

Answer:

A

Step-by-step explanation:

A. because the first point shows her acceleration and you can see her speed increasing when she hits the second point, so we can say that see accelerated up the ramp and after it hits the third point her speed becomes constant all the way when she reached the highway

4 0
2 years ago
Read 2 more answers
6r + 7 = 13 + 7r<br> what is r?
lubasha [3.4K]

Answer:

6r + 7 = 13 + 7r

subtract 6r from both sides...

7 = 13 + r

subtract 13 from both sides...

-6 = r

r = -6

Step-by-step explanation:

3 0
3 years ago
Which ratios have a unit rate less than 1? choose all that apply.
DaniilM [7]

Answer:

2apply.

Step-by-step explanation:

6 0
2 years ago
Please see the photo. It's not 4 or 6.
Verdich [7]

Answer:

x = 9

Step-by-step explanation:

The product of the external part and the entire part of one secant is equal to the product of the external part and the entire part of the other secant, that is

5(x - 6 + 5) = 4(x - 3 + 4)

5(x - 1) = 4(x + 1) ← distribute parenthesis on both sides

5x - 5 = 4x + 4 ( subtract 4x from both sides )

x - 5 = 4 ( add 5 to both sides )

x = 9

4 0
2 years ago
Read 2 more answers
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