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kakasveta [241]
3 years ago
12

Which is the most precise definition of a​ circle?

Mathematics
2 answers:
kari74 [83]3 years ago
8 0
The best answer is D.

A is incorrect because that means that all squigly lines that have ends that meet are circles, which is false.
B is incorrect because this is not very precise as a definition. Also, compasses are not completely perfect, so the points are slightly off from being completely equidistant from the point.
C is incorrect because that's describing a sphere (notice how it says space instead of plane).
faltersainse [42]3 years ago
5 0
D. The set of all points in a plane that are equidistant from a fixed point.
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14.7Newtowns what unit of measure mist we use any specific
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Using the Distance Formula to find the distance between the two points.<br> A (-3,4) B (1,3)
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3 years ago
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During the Christmas season, a store offers a sale. You buy one item for the regular price then you get 60% discount on a second
Lelu [443]

Answer:

24%

Step-by-step explanation:

Given: Regular price of two item is $30 and $20.

           60% discount provided on second item.

Now, lets find out discount provided on second item.

∴Discount provided = \frac{60}{100} \times 20 = \$ 12

Amount paid for second item = Regular price - discount provided

∴Amount paid on second item= 20 - 12= $8

Total amount paid for two item= Regular price of first item + discounted price of second item.

∴Total amount paid for two item= 30+8= \$ 38

Next, lets find out the percent of reduced total cost of two item.

\frac{reduced\ amount}{total\ regular\ price} \times 100

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∴ By 24\% the total cost of two item reduce during sale.

8 0
4 years ago
The cost to a store for an MP3 player is $60. The selling price is $105. A classmate says that the markup is 175% because $105$6
blsea [12.9K]

It is given that the cost price of the MP3 player is $60 and the selling price is $105.

The markup is given by the formula:

Markup = \frac{S.P.}{C.P.} (100)

= \frac{105}{60} (100)

= 1.75 × 100

= 175%

Yes, the classmate is correct.

Hence, the markup is 175% and the classmate is correct.

5 0
3 years ago
What is the solution to StartFraction h over negative 24 EndFraction less-than-or-equal-to 18?
attashe74 [19]

Answer:

h greater-than-or-equal-to negative 432

Step-by-step explanation:

\frac{h}{-24} \leq 18

* multiply each side by -24 *

\frac{h}{-24} *-24=h\\-24*18=-432

IMPORTANT NOTE: when multiplying an inequality by a negative number you must flip the sign. So if the inequality sign was once facing the constant ( 18 ) then it will flip and face the variable ( h )

Thus,

h ≥-432

Which can also be expressed as h is greater than or equal to negative 432

Extra notes: You only have to flip the inequality sign if it's being multiplied by a negative number. Meaning if its multiplied by a positive number then the inequality sign does not flip.  

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3 years ago
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