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Andrew [12]
3 years ago
8

Sarah practices the piano 1/3 hour in the morning, 5/6 hour in the afternoon, and 4/5 hour in the evening.

Mathematics
1 answer:
finlep [7]3 years ago
5 0

Answer:

To add 1/3 and 3/6, change 1/3 to 2/6, and add 2/6 and 3/6, which is 5/6.

To add 5/6 and 4/5, change both denominators to 30. 25/30 + 24/30 = 49/30, which is also 1 19/30.  Please mark me brainless,

Step-by-step explanation:

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Your salary is $65,788. If you work fifty 40-hour weeks in a year, what is your hourly wage?
Dahasolnce [82]

Answer:

$31.63 per hour

Step-by-step explanation:

$31.63 per hour

40 hour weeks × 52 weeks = 2080 hours

65,788/2080= 31.63

hope this helped,brainliest?

7 0
2 years ago
Which long division problem can be used to prove the formula for factoring the difference of two perfect cubes?
Mademuasel [1]
69
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3 years ago
Read 2 more answers
What is the tan invers of 3i/-1-i​
postnew [5]

<em>z</em> = 3<em>i</em> / (-1 - <em>i</em> )

<em>z</em> = 3<em>i</em> / (-1 - <em>i</em> ) × (-1 + <em>i</em> ) / (-1 + <em>i</em> )

<em>z</em> = (3<em>i</em> × (-1 + <em>i</em> )) / ((-1)² - <em>i</em> ²)

<em>z</em> = (-3<em>i</em> + 3<em>i</em> ²) / ((-1)² - <em>i</em> ²)

<em>z</em> = (-3 - 3<em>i </em>) / (1 - (-1))

<em>z</em> = (-3 - 3<em>i </em>) / 2

Note that this number lies in the third quadrant of the complex plane, where both Re(<em>z</em>) and Im(<em>z</em>) are negative. But arctan only returns angles between -<em>π</em>/2 and <em>π</em>/2. So we have

arg(<em>z</em>) = arctan((-3/2)/(-3/2)) - <em>π</em>

arg(<em>z</em>) = arctan(1) - <em>π</em>

arg(<em>z</em>) = <em>π</em>/4 - <em>π</em>

arg(<em>z</em>) = -3<em>π</em>/4

where I'm taking arg(<em>z</em>) to have a range of -<em>π</em> < arg(<em>z</em>) ≤ <em>π</em>.

6 0
2 years ago
What kind of exponent does this graph have? Help pls ?
otez555 [7]
It’s 42 but Carrier the 2
4 0
3 years ago
A king cobra has a mass of 8.845 kilograms. Round the mass to the nearest tenth kilogram.
nevsk [136]

Answer:

8.8 Kilograms

Step-by-step explanation:

5 0
3 years ago
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