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tiny-mole [99]
3 years ago
14

3. Noah plays video games 7/8 of an hour each day. How many

Mathematics
2 answers:
julia-pushkina [17]3 years ago
7 0

A weeks consists of 7 days, so we have to multiply the daily rate by 7:

\dfrac{7}{8}\cdot 7 = \dfrac{49}{8}=6.125

7nadin3 [17]3 years ago
3 0
1 hour = 60 mins
7/8(60) = 52.5 minutes per day
In a week: 52.5(7) = 367.5 mins
367.5/60 = 6 1/8
Therefore, he watches tv for 6 1/8 hours
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hammer [34]

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Step-by-step explanation:

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3 years ago
Please HELP!!!!
Karolina [17]

Answer:


Step-by-step explanation:

Firstly, note that -2i really is just z = 0 + (-2)i, so we see that Re(z) = 0 and Im(z) = -2.

When we're going from Cartesian to polar coordinates, we need to be aware of a few things! With Cartesian coordinates, we are dealing explicitly with x = blah and y = blah. With polar coordinates, we are looking at the same plane but with angle and magnitude in consideration.

Graphing z = -2i on the Argand diagram will look like a segment of the y axis. So we ask ourselves "What angle does this make with the positive x axis? One answer you could ask yourself is -90°! But at the same time, it's 270°! Why do you think this is the case?

What about the magnitude? How far is "-2i" stretched from the typical "i". And the answer is -2! Well... really it gets stretched by a factor of 2 but in the negative direction!

Putting all of this together gives us:

z = |mag|*(cos(angle) + isin(angle))

= 2*cos(270°) + isin(270°)).

To verify, let's consider what cos(270°) and sin(270°) are.

If you graph cos(x) and look at 270°, you get 0.

If you graph sin(x) and look at 270°, you get -1.

So 2*(cos(270°) + isin(270°)) = 2(0 + -1*i) = -2i as expected.

3 0
3 years ago
I don’t understand please help me and give the answer
barxatty [35]
Which question do u need help with
4 0
3 years ago
How do I solve for y in the equation 2(3/4)+y=4?
yuradex [85]
2* .75 + y = 4
1.5 + y = 4
Subtract 1.5 From Each Side
Y = 2.5 Or 2 1/2
5 0
2 years ago
Read 2 more answers
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hodyreva [135]

Answer:

yeeeeeeeees

Step-by-step explanation:

yeeeeeeeeeeees

8 0
2 years ago
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