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aev [14]
2 years ago
9

During a hot summer week, the water level in Wei's pool decreased by 1.9 centimeters. Wei added water to the pool, increasing th

e level by 3.5 centimeters.During the next week, the water level decreased by 2.4 centimeters.How does the new water level compare to the original water level?
Mathematics
1 answer:
Tasya [4]2 years ago
6 0

Answer:

The new water level decreased by 0.8 centimeters compared to the original water.

Step-by-step explanation:

Change = (-1.9) + 3.5 -2.4

             = (-0.8)

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Answer:

1: Reflect M across the x-axis

2: Dilate about the center by 3/2

Step-by-step explanation:

Given

See attachment for M and N

Required

Which maps M to N

The coordinates of the radius of the circles are:

M = (5,5)

N = (5,-5)

And the radius of circles are:

r_M=2

r_N=3

The first transformation from M to M' is:

- Reflect across the x-axis

The rule is:

(x,y) \to (x,-y)

M(5,5) \to M'(5,-5)

<em>At this point, M' and N now have the same center but different radius.</em>

The second transformation from M' to N is:

- Dilate about the center by dividing the radius of N by the radius of M

i.e.

k =\frac{r_N}{r_M}

k =\frac{3}{2}

<em>At this point, M has been completely mapped to N.</em>

4 0
2 years ago
How to improve in math?
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3 years ago
What kind of quadrilaterals is this?
DanielleElmas [232]

Answer:

Trapezoid

Step-by-step explanation:

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2 years ago
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Answer:

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Step-by-step explanation:

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2 years ago
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ozzi

Answer:

Step-by-step explanation:

6(1/3X7/5)=(6X1/3)X7/5

6X7/15=6/3X7/5

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