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Arturiano [62]
3 years ago
13

The price of a calculator has decreased from $200 to $150. What is the percentage of decrease?

Mathematics
2 answers:
WITCHER [35]3 years ago
6 0
200-150 =50

50/200=1/4

1/4 x 100% =25%
sp2606 [1]3 years ago
5 0
25% decrease
:) :) ;) ;)
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Answer:

C, E

Step-by-step explanation:

A. INCORRECT

A is wrong because a reflection across the x-axis DOES move the position of the figure (as it is flipped, so the position changes), but it DOES NOT change the angle (since a shift in position doesn't equal to a change in angle measure)

B. INCORRECT

Although a reflection across the x-axis does change the position of the angle, it DOES NOT change the measure of the angle.

C. CORRECT

A reflection across the x-axis does in fact move the position of the figure and does not change the angle measure. Reflections only deal with flipping a figure, not changing it's shape/distorting it so that the angle will change.

D. INCORRECT

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E. CORRECT

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8 0
3 years ago
Please help me figure this out it’s due on 15 minutes
Olin [163]

Answer:

Step-by-step explanation:

1. area of square=10²=100 cm²

area of circle=πr²=π×2.5²=6.25π cm²

reqd. area=100-6.25π ≈80.375 cm²

2.

area of circle=π×2.5²=6.25π≈6.25×3.14≈19.625 cm²

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3.

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4.

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diameter of bigger circle=4+4+8+8=24 cm

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