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4 years ago

I really want to finish this homework and I want to say what’s 9+9

Mathematics

2 answers:

larisa86 [58]4 years ago

6 0

Answer:

Step-by-step explanation:

9+9=18

otez555 [7]4 years ago

5 0

Answer:

There is not enough info for me. All I am understanding is that the info is 18.

Step-by-step explanation:

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Write 0.0007654 * 10^0 in scientific notation, then state the order of magnitude for it.

Bas_tet [7]

remember that to put a number in scientific notation is necessary to have the first digit of the number different to 0, so

$0.0007654\cdot10^0=7.654\cdot10^{-4}$

to calculate the order of magnitude, if the number is greater than 3.16, we assume it as a 10, so in this case as 7.654 > 3.16 we get that the order is

$10\cdot10^{-4}=10^{-3}$

So the order is 10^-3

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3 years ago

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vovikov84 [41]

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3 years ago

(WILL DO BRAINLIST)

Lynna [10]

You have a function $y= \dfrac{3}{2} \left(1+\sin \left(\dfrac{2t+1}{2}\cdot \pi\right) \right)$ .
Since the range of the function $y=\sin x$ is $[-1,1]$ you have that

$-1\le \sin \left(\dfrac{2t+1}{2}\cdot \pi\right)\le 1 \\ 0\le 1+\sin \left(\dfrac{2t+1}{2}\cdot \pi\right) \le 2 \\ 0\le \dfrac{3}{2} \left(1+\sin \left(\dfrac{2t+1}{2}\cdot \pi\right) \right)\le 3$ .
Answer: The range of given function is [0,3] and the correct choice is C.

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3 years ago