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3 years ago

What is the volume of 5cm 2cm 8cm.

Mathematics

2 answers:

Soloha48 [4]3 years ago

5 0

Answer:

80 cm

Step-by-step explanation:

(5 x 8) x 2

40 x 2

80 cm

Stells [14]3 years ago

4 0

Answer:

80cm

Step-by-step explanation:

5x8=40x2=80cm

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If you stacked Avogadro's number of pennies one on top of the other on Earth's surface, how far would the stack extend (in kilom

miskamm [114]

Answer:my

The height of the stack will be 9.15×10^20_m

Or 9.15×10^17_Km

Which is 6 billion times more more than the distance to the sun

Or 22.9 million times further than the star Proxima Centauri

Step-by-step explanation:

Given

Avogadro's number = 6.02×10^23 particles

And the thickness of a penny = 1.52_mm

The height of the stack will be

1.52 × 6.02 ×10^23 = 9.15×10^23_mm 9.15×10^20_m

7 0

4 years ago

Help help help help help

Basile [38]

Answer:

23.2

Step-by-step explanation:

15.7 - (-7.5) = 15.7 + 7.5 (because if there's 2 negative sign it makes the number positive)

15.7 + 7.5 = 23.2

7 0

3 years ago

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The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f (x )equalsStartFraction x

ankoles [38]

Answer:

The rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities are:

a) 0.52

b) 2.63

Step-by-step explanation:

The rate of change of a function at a given point P can be obtained by evaluating the 1st derivative of the function in P. Thus,

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

$\frac{df(x)}{dx} = \frac{d(\frac{x^2}{2(1-x)})}{dx} \\\frac{df(x)}{dx} =\frac{x}{1-x} + \frac{x^2}{2(1-x)^2} \\\frac{df(x)}{dx} = -\frac{x(x-2)}{2(x-1)^2}$

Now for we just need to evaluate in each of the given points

a) $\frac{df(0.3)}{dx} =-\frac{0.3(0.3-2)}{2(0.3-1)^2}\\\boxed{\frac{df(0.3)}{dx} =0.520408 \approx 0.52}$

b) $\frac{df(0.6)}{dx} =-\frac{0.6(0.6-2)}{2(0.6-1)^2}\\\boxed{\frac{df(0.6)}{dx} = 2.625\approx 2.63}$

4 0

3 years ago

Compare the functions below:

rjkz [21]

$f(x)\to y_{max}=4\\\\g(x)=4\cos(2x-\pi)-2\to y_{max}=2\\\\h(x)=-(x-5)^2+3\to y_{max}=3$

Answer: a. f(x)

6 0

3 years ago

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What is the best estimate for the square root of 15?

babunello [35]

Answer:

3.9

Step-by-step explanation:

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4 years ago

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