3 years ago

6x9x(-5) what is the answer to this question?

Mathematics

1 answer:

9966 [12]3 years ago

7 0

-270. Use the google calculator.

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He first three terms of a geometric sequence are as follows. 10 , 30 , 90 find the next two terms of this sequence.+

ankoles [38]

10*3=30
30*3=90
90*3=270
270*3=810

or

10*3^1=30
10*3^2=90
10*3^3=270
10*3^4=810

the next two terms of this sequence are 270 and 810.

4 0

3 years ago

Find a and y ................

lyudmila [28]

Answer:

Guuh coccyx rightful

A= 18cm and y° = 20

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3 years ago

Will is w years old. Ben is 3 years older. write an expression, in terms of w, for bens age

liubo4ka [24]

W + 3 = Ben's age or 3 + w = Ben's age, either way.

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3 years ago

Help me solve this please

sattari [20]

Answer:

x = 0

Step-by-step explanation:

x-5/3=1=3-2x-2

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3 years ago

[2(cos15° + isin15°)]^4

Sergeu [11.5K]

Answer:

$8+8\sqrt{3} \ i$

Step-by-step explanation:

$[2(\cos15+i15)^{4}]\\=2^{4}(\cos15+i\sin15)^{4}\\=16(\cos15+i\sin15)^{4}..........(1)$

De Moivre's Formula :

$(\cos x+i\sin x)^{n}=\cos n x+i\sin nx\\\\\\(\cos 15+i \sin15)^{4}=\cos(4\times 15)+i\sin (4\times 15)\\=\cos60+i\sin60\\=\frac{1}{2} +\frac{\sqrt{3}}{2} \\=\frac{1+\sqrt{3i} }{2}$

Now from eqn(1)

$[2(\cos15+i\sin15)]^{4}=16\times \frac{1+\sqrt{3}i}{2} =8+8\sqrt{3}i$

8 0

4 years ago