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4 years ago

Be sure the answer is reduced.

Mathematics

1 answer:

morpeh [17]4 years ago

7 0

Answer is (45-25s^2)/(9s^2+6s-45)

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What is 3 3/5 as a percent 360% 335% 36.0% Or 33.5%

Arlecino [84]

Answer:

3 3/5=360%

Solution 1 :

3 3/5=3+35

=3+(3÷5)

=3+0.6

=3.6

Convert the decimal to a percent:

=3.6×100

=360%

5 0

3 years ago

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You received $70 for your birthday and you decide to go shopping. While shopping you find a pair of shoes that cost $50 and are

Rom4ik [11]

Answer:

Step-by-step explanation:

Its actually really easy if you know ur percentages. whats 10% of 50 = 45 know whats 45 - 70 = 25 now whats 25 - 9.98 = 15.02 - 13.50 = 1.52 now whats 6.5 - 1.52 then you have your answer

6 0

3 years ago

Which expression is a cube root of -1+i√3?

Tpy6a [65]

Answer:

The correct option is C.

Step-by-step explanation:

Root Of Complex Numbers

If a complex number is expressed in polar form as

$Z=(r,\theta)$

Then the cubic roots of Z are

$\displaystyle Z_1=\left(\sqrt[3]{r},\frac{\theta}{3}\right)$

$\displaystyle Z_2=\left(\sqrt[3]{r},\frac{\theta}{3}+120^o\right)$

$\displaystyle Z_3=\left(\sqrt[3]{r},\frac{\theta}{3}+240^o\right)$

We are given the complex number in rectangular components

$Z=-1+i\sqrt{3}$

Converting to polar form

$r=\sqrt{(-1)^2+(\sqrt{3})^2}=2$

$\displaystyle tan\theta=\frac{\sqrt{3}}{-1}=-\sqrt{3}$

It's located in the second quadrant, so

$\theta=120^o$

The number if polar form is

$Z=(2,120^o)$

Its cubic roots are

$\displaystyle Z_1=\left(\sqrt[3]{2},\frac{120^o}{3}\right)=\left(\sqrt[3]{2},40^o\right)$

$\displaystyle Z_2=\left(\sqrt[3]{2},40^o+120^o\right)=\left(\sqrt[3]{2},160^o\right)$

$\displaystyle Z_3=\left(\sqrt[3]{2},40^o+240^o\right)=\left(\sqrt[3]{2},280^o\right)$

Converting the first solution to rectangular coordinates

$z_1=\sqrt[3]{2}(\ cos40^o+i\ sin40^o)$

The correct option is C.

8 0

4 years ago

2/3 of a pizza was left over. A group of friends divided the leftover pizza into pieces equal to 1/18 of the original pizza. Aft

Helen [10]

1/18 devided by 2/3 =

1/18 times 3/2 = 1/12 times 1/6 = 1/72

4 0

3 years ago

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What are some of the different parts of a cell?

Arisa [49]

Mitochondria, cytoplasm, nucleus, cell wall, cell membrane, vacuole

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3 years ago