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Sergio [31]
2 years ago
15

65000÷9330

Mathematics
1 answer:
Nataly [62]2 years ago
8 0

Step-by-step explanation:

1.answer is 6.9667738478

2 answer is 42.872454448

3answer is 14.1339764202

4answer is 0.0857449089.

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A square with side x is changing with time where x(t)=3t+1. What is rate of change of the area of the square when t=2 seconds.
GuDViN [60]

Answer:

Rate of change of the area of the square is 42 units at t = 2.

Step-by-step explanation:

We note that the area of the square is given by: A(x) = x^2 but we aim to find \frac{dA}{dt}. But we can use the chain rule to pull out that dA/dt. Doing so gives us:

\frac{dA}{dt} = \frac{dA}{dx} \times \frac{dx}{dt}.

Now, \frac{dA}{dx} = 2x (by the power rule and \frac{dx}{dt} = 3.

But since we have "x" and not "t", we want to find what x is when t = 2. Substituting t = 2 gives us x(2) = 3(2) + 1 = 7.

So, finally, we see that:

\frac{dA}{dt} = 2(7) \times 3 = 14 \times 3 = 42.

7 0
3 years ago
Help
jenyasd209 [6]

Step-by-step explanation:

1) when x= 1/5

y = 1/5 + 1/2

y = 7/10

2) when x= 1/4

y = 1/4 + 1/2

y= 3/4

3) when x= 1/3

y = 1/3 + 1/2

y = 5 /6

3 0
3 years ago
Compare A and B in three​ ways, where A = 1.8 million is the 2012 population of city X and B = 2.5 million is the 2012 populatio
xxMikexx [17]

Answer:

B is greater than A

Step-by-step explanation:

B is greater than A coz A has the smallest population. The population was due 2012 and B=2.5million and A=1.8million that means B is greater than A

5 0
2 years ago
Help help legit answers only
Ne4ueva [31]

Answer:

x ≈ 46.7°

Step-by-step explanation:

Using the sine ratio in the right triangle

sin x = \frac{opposite}{hypotenuse} = \frac{OP}{NP} = \frac{4}{5.5} , then

x = sin^{-1} (\frac{4}{5.5} ) ≈ 46.7° ( to the nearest tenth )

6 0
3 years ago
Read 2 more answers
4/9 divided by 1 and 7/15
FromTheMoon [43]
I believe it’s 10/33 because you divide 4/9 and 22/15 and use kfc you get 60/198 simplifying it makes 10/33
5 0
3 years ago
Read 2 more answers
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