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3 years ago

Select the points you need to calculate the average rate of change from the beginning of the

Mathematics

2 answers:

anastassius [24]3 years ago

8 0

Answer:

A) (0,80)

and

B) (15,10)

The average rate of change is -14/3

Step-by-step explanation:

egen2020

sammy [17]3 years ago

6 0

It would be the points (0,80) and (15,10)

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Evaluate this exponential expression.

Levart [38]

Answer:

$(-27)^\dfrac{2}{3}$ = 9

Step-by-step explanation:

Given that,

Asn expression : $(-27)^\dfrac{2}{3}$

We need to evaluate the above expression.

We know that, $(-3)^3=-27$

So,

$(-27)^\dfrac{2}{3}=(-3)^{3\times \dfrac{2}{3}}$

$=(-3)^2\\\\=-3\times -3\\\\=9$

So, the value of $(-27)^\dfrac{2}{3}$ is 9. Hence, the correct option is (b).

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3 years ago

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Answer:

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3 years ago

The lenght of a rectangle is 4 cm less than three times the width. the perimeter is 64 cm

dybincka [34]

Let the width be x cm.
Then length=3x-4 cm.
Its perimeter is 64 cm.
We know that perimeter of a rectangle= 2(length+width)
So,
2(3x-4+x)=64
6x-8+2x=64
6x+2x=64+8
8x=72
x=9
Therefore,
length=(3×9-4)cm=(27-4)cm=23 cm.
Width=9 cm.

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3 years ago

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Radda [10]

Answer:

135 cm³

Step-by-step explanation:

To find volume: you multiply length*width*height

2. $l*w*h$

3. 6*5*4 1/2

4. 6*5=30

5. 30*4 1/2=135

6. 135 cm³

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Answer:

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Step-by-step explanation:

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