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3 years ago

Rectangle A has length 12 and width 8. Rectangle B has length 15 and width 10. Rectangle C has length 30 and width 15.

Mathematics

2 answers:

Licemer1 [7]3 years ago

8 0

Answer: It is not scale copy (given)

Step-by-step explanation:

Rectangle B: 15 by 10

Rectangle C: 30 by 15

-------------------------------------

First way: Compare the ratio among themselves

Rectangle B: 15:10=3:2

Rectangle C: 30:15=2:1

Apparently, the two side ratios are not the same, thus it is not scale copy

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Second way: Compare the ratio between the two.

Length: Rectangle B:Rectangle C=15:30=1:2

Width: Rectangle B:Rectangle C=10:15=2:3

1:2≠2:3

Thus, Rectangle C is not a scaled copy of Rectangle B

Darina [25.2K]3 years ago

6 0

Answer:

Step-by-step explanation:

The length is x2 while the width is x1.5

Therefore it cannot be a scaled copy

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pogonyaev

Answer:

$14.30

Step-by-step explanation:

26 - 11.70 = 14.30

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3 years ago

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Genrish500 [490]

Answer:

Step-by-step explanation:

So we have two equations.

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Then you distribute, in which I am not going to show because that too many steps lol. But you'll get:

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4 years ago

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lana66690 [7]

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3 years ago

Classify each of the power functions based on their end behavior (increasing or decreasing) as x = ∞

Svetlanka [38]

Answer: right side behavior:

f(x) is Decreasing

g(x) is Increasing

h(x) is Increasing

j(x) is Decreasing

Step-by-step explanation:

The rules for end behavior are based on 2 criteria: Sign of leading coefficient and Degree of polynomial

Sign of leading coefficient (term with greatest exponent):

If sign is positive, then right side is increasing
If sign is negative, then right side is decreasing

Degree of polynomial (greatest exponent of polynomial:

If even, then end behavior is the same from the left and right
If odd, then end behavior is opposite from the left and right

f(x) = -2x²

Sign is negative so right side is decreasing
Degree is even so left side is the same as the right side (decreasing)

as x → +∞, f(x) → +∞ Decreasing

as x → -∞, f(x) → -∞ Decreasing

g(x) = (x + 2)³

Sign is positive so right side is increasing
Degree is odd so left side is opposite of the right side (decreasing)

as x → +∞, f(x) → +∞ Increasing

as x → -∞, f(x) → -∞ Decreasing

$h(x)=-1+x^{\frac{1}{2}}\implies h(x)=x^{\frac{1}{2}}-1$

Sign is positive so right side is increasing
Degree is an even fraction so left side is opposite of the right side as it approaches the y-intercept (-1)

as x → +∞, f(x) → +∞ Increasing

as x → -∞, f(x) → -1 Decreasing to -1

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4 years ago

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cestrela7 [59]

Answer:

The answer is 85 degrees.

Step-by-step explanation:

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I hope I helped you! :)

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3 years ago