If you could help that would be great!

Mathematics

1 answer:

lapo4ka [179]3 years ago

8 0

x- 2, 6, 1/2

Y=Kx. -4, -2, 1

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Describe how to write 3,482,000,000 in scientific notation.

devlian [24]

It needs to be a number multiplicated by 10 with a round power. With your number, s
you should write it like that : 3.482000000x10^9 (if your zeros are significant, otherwise 3.482x10^9) OR 3.482000000G (for Giga=1×10^9)

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Three workers have to do a certain job. The first worker can finish the job in 8 hours. The second worker can finish the job in

Ainat [17]

This means that...

the first worker does 1/8 of the job each hour.

the second worker does 1/4 of the job each hour.

the third worker does 1/4 of the job each hour.

So together they get 1/8+1/4+1/4 of the job done per hour.

Rate: 5/8 of the job per hour

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3 years ago

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3 years ago

Assume that x equals x (t )and y equals y (t ). Let y equals x cubed plus 4 and StartFraction dx Over dt EndFraction =2 when xe

nika2105 [10]

Answer:dy/dt(x=3)=54

Step-by-step explanation:

We know that we can write:

$\frac{dy}{dt}=\frac{dy}{dx} *\frac{dx}{dt}$

and so evaluate it as a product of functions, that is for a given value of x or t, we get that

$\frac{dy}{dt}(s)=\frac{dy}{dx} (s) * \frac{dx}{dt}(s)$ .

Now we are told that:

$1. x=x(t),\ 2.y=x^3+4,\ \frac{dx}{dt} =2,\ for \ x=3,$

whenever it happens, this means the influence of t is hidden, and we only consider the result, that is, how much is x when the derivative has the value of 2, we are not concerned for what value of t it happens, since we get all the necessary information beforehand.

Now we need to calculate

$\frac{dy}{dx}=3x^2 \rightarrow \frac{dy}{dx}(3)=3(3)^2=27$ .