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Liula [17]
2 years ago
11

What's the answer? Serious answers only please, :/.

Mathematics
2 answers:
mr Goodwill [35]2 years ago
5 0

Answer:

2.5 cm

Step-by-step explanation:

Rectangle A    L x W = 40

                   

Rectangle B     L * W   = 1/2 (40)

                        8 * W = 20

                              W = 2.5 cm

adoni [48]2 years ago
4 0

Answer:

The width of B. is 2.5cm

Step-by-step explanation:

Rectangle A has 40cm^2 and a length of 8.

Rectangle B. has an area half of 40cm^2 which would be 20cm^2.

Area of B has an area of 20cm^2

Now we need to find the width of B.

All that we know is that B. has an area of 20cm and it has the same length as A, and that length is 8.

Everyone knows that you multiply the length by the width to find the area of a shape.

8 times something = 20

We can do that backward and divide 8 by 20 which is 2.5

To check this answer we multiply 2.5 by 8 which = 20

The width of rectangle B. is 2.5cm.

<em>I hope that this helps! -Karen</em>

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aksik [14]
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7 0
3 years ago
F(x)=2x-4. F(x)=2x-4 f-1x=_x+_. Complete the inverse function
natita [175]

Answer:

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Step-by-step explanation:

Given

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Required

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y = 2x - 4

Swap the positions of y and x

x = 2y - 4

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x+4 = 2y

Make y the subject: <em>Divide through by 2</em>

<em></em>\frac{1}{2}(x + 4) = y<em></em>

<em></em>y = \frac{1}{2}(x + 4)<em></em>

<em></em>

Replace y with f-1(x)

f^{-1}(x) = \frac{1}{2}(x +4)

3 0
3 years ago
stephen wakes up late and runs to catch the bus, his running speed is 4m/s, he gets to the bus stop in 2 minutes. how many metre
Basile [38]
<span>Given:
s=4m/s
t=2m
d=?

Convert
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d=vt
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Example:
The given terms here are: Distance = 150 km Time = 7200 s Speed =?   To express the speed in appropriate units, in this given we can simply kilometer to meter which is the SI unit for distance. Hence, we do the conversion first. </span><span><span>
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2.    </span>To find speed, we drive the formula d = vt where v = velocity or speed to v= d/t</span> 
<span>V = d / t </span>
<span>V = 150, 000m / 7200 s </span>
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Hence, 20. 83 m/s is the speed.<span>
</span>

3 0
3 years ago
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luda_lava [24]

Answer:

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Step-by-step explanation:


5 0
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