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garri49 [273]
2 years ago
15

Which choices are equivalent to the expression below (check all that applies )

Mathematics
1 answer:
Vaselesa [24]2 years ago
4 0
Letter c because if u multiply 5•3 you get 15
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Help me plz bruh i need this doneeeee
NARA [144]
Answer 2. You just have to find wants similar and put it out front and then leave wants left in parentheses
5 0
3 years ago
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On a shopping trip kellen spent $3 on a bus ticket $9 on a book and $5 after the trip . How much money did he start with
BaLLatris [955]

He would have $17 9+3=12 12+5=17


4 0
3 years ago
This is due tomorrow PLZ HELP IMMEDIATELY
horsena [70]
The value of X would be 9
8 0
3 years ago
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Solve using demoivres theorem
pashok25 [27]
It's difficult to make out, but I think the task is to expand

(\sqrt3-i)^4

Write the number in polar form first:

\sqrt3-i=2e^{-i\pi/6}

By DeMoivre's theorem, you have

(\sqrt3-i)^4=\left(2e^{-i\pi/6}\right)^4=2^4e^{-i4\pi/6}=16e^{-i2\pi/3}

and converting back to Cartesian form, this number is equivalent to

16\left(\cos\dfrac{2\pi}3-i\sin\dfrac{2\pi}3\right)=16\left(-\dfrac12+-\dfrac{\sqrt3}2\right)=-8(1+i\sqrt3)
3 0
2 years ago
z varies jointly with x and y. When x = 2 and y = 3, z = 60. What is the value of z when x = 4 and y = 9?
kondor19780726 [428]
2 x 3 = 6 x 10 = 60
<em>Assuming that you are using the same rule:
</em><em>4 x 9 x 10 = 360
</em>The value of z when x = 4 and y = 9 is 360. Hope this helped!
6 0
3 years ago
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