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2 years ago

A robot can complete 8 tasks in 5 hour. Each task takes the same amount of time.

Mathematics

1 answer:

slava [35]2 years ago

7 0

Answer:

if you're asking how long each task takes, it should take 37.5 minutes per task.

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25 POINTS!! Help will give the brainliest

polet [3.4K]

Answer:

value of a in terms of b and c is: $\mathbf{a=bc}$

Option D is correct.

Step-by-step explanation:

We are given:

$a=b^2c^2d \:and\: d=\frac{1}{a}$

We need to find a in terms of b and c

We have: $a=b^2c^2d$

Put value of d $d=\frac{1}{a}$

$a=b^2c^2(\frac{1}{a})\\a^2=b^2c^2\\Taking \:squareroot\:on\:both\:sides\\\sqrt{a^2}=\sqrt{b^2c^2}\\a=bc$

So, value of a in terms of b and c is: $\mathbf{a=bc}$

Option D is correct.

6 0

2 years ago

Answer this quickly please: sin^(2)x-5cosx-5=0

pochemuha

X= 3.14 + 2*3.14*n.

Hdhekdhdhdndn

6 0

2 years ago

Use differentials to estimate the amount of paint needed to apply a coat of paint 0.07 cm thick to a hemispherical dome with dia

Mademuasel [1]

An hemispherical dome is half a sphere. If the diameter is 60 m, then the radius is 30 m.

We can use differentials to solve this problem because we are adding a thin layer to the original dome, so the volume of the dome in increased by a differential of itself.

This differential volume that the dome is increased is equal to the volume of the coat of paint.

The volume of the dome can be written as:

$\begin{gathered} V=\frac{4\pi}{3}r^3 \\ \frac{dV}{dr}=\frac{4\pi}{3}\cdot3r^2\Rightarrow dV=\frac{4\pi}{3}\cdot3r^2\cdot dr=4\pi r^2\cdot dr \end{gathered}$

Now, we can calculate dV as:

$\begin{gathered} dV=4\pi r^2\cdot dr \\ dV\approx4\cdot3.14\cdot(30m)^2\cdot0.07\operatorname{cm}\cdot\frac{1m}{100\operatorname{cm}} \\ dV\approx12.57\cdot900m^2\cdot0.0007m \\ dV\approx7.92m^3 \end{gathered}$

Answer: the paint needed for this coat is approximately 7.92 m^3

5 0

1 year ago

Harriet lives on the ground level of her apartment building. The level she lives on is repersented as by?

sattari [20]

Answer:

zero

Explanation:

In any system:

the ground (base) is referred to as zero lever

what comes above the ground level would be positive

what comes below the ground level would be negative

Now, we are given that:

she lives on the ground floor.

Based on the above, the representation would simply be zero

Hope this helps :)

4 0

3 years ago

Read 2 more answers

The sum of 3 consecutive numbers equal 87, find the numbers

boyakko [2]

Answer:

28, 29, 30

Step-by-step explanation:

8 0

3 years ago