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Advocard [28]
3 years ago
10

Round to the nearest ten 426,889

Mathematics
2 answers:
lorasvet [3.4K]3 years ago
7 0
426,890
have a good day
liq [111]3 years ago
3 0
426,890
Hope this helps!!!!!!!!
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Find [5(cos 330 degrees + I sin 330 degrees)]^3
earnstyle [38]
Given a complex number in the form:
z= \rho [\cos \theta + i \sin \theta]
The nth-power of this number, z^n, can be calculated as follows:

- the modulus of z^n is equal to the nth-power of the modulus of z, while the angle of z^n is equal to n multiplied the angle of z, so:
z^n = \rho^n [\cos n\theta + i \sin n\theta ]
In our case, n=3, so z^3 is equal to
z^3 = \rho^3 [\cos 3 \theta + i \sin 3 \theta ] = (5^3) [\cos (3 \cdot 330^{\circ}) + i \sin (3 \cdot 330^{\circ}) ] (1)
And since 
3 \cdot 330^{\circ} = 990^{\circ} = 2\pi +270^{\circ}
and both sine and cosine are periodic in 2 \pi,  (1) becomes
z^3 = 125 [\cos 270^{\circ} + i \sin 270^{\circ} ]

6 0
4 years ago
Can someone pls help me <br> Solve for x <br> Please show ur work
Kitty [74]

Answer:

9=x

Step-by-step explanation:

80º=(8x+8)º

80=8x+8

Subtract 8 from both sides of the equation.

72=8x

Divide 8 from both sides of the equation.

9=x

Hope this helps :)

4 0
3 years ago
Mr. saslow has $32 for the class party. he spends $17 on the drinks and the cake. which of the inequalities represents the money
harkovskaia [24]

Answer:

I don't see any options for inequalities, so I wrote one based on the information.

Step-by-step explanation:

We'll assume that the drinks and cake ($17) are the only items Mr. Saslow needs to purchase and that the remainder may be used on whatever extras he wants.  In this case, candy.

He starts with $32 and spends $17.  The remainder may be spent on candy (all or none).  This can be expressed as an inequality.  Let C be the cost of the candy.

  C \leq ($32 - $17)

   C \leq ($32 - $17)

  C \leq ($15)

7 0
2 years ago
7 The graph of p = 400 and the graph of p = 50s - 200 intersect at the point (12,400).
barxatty [35]

Answer:

B When the sales are 12, the profit is 400.

Step-by-step explanation:

Given

p = 500s - 200

p = 400

(s,p) = (12,400)

Required

Interpret the intersection

From the intersection, we have the following parameters.

(s,p) = (12,400)

Literally, it means

s = 12 when p = 400

From the question, we understand that

s represents sales while p, profit.

So, the interpretation of (s,p) = (12,400) is when sales = 12, profit = 400

7 0
3 years ago
What percent of 56 is 42?
svetoff [14.1K]

Answer:

nicki monaj is the queen of rap

Step-by-step explanation:

periodt purr

8 0
3 years ago
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