3 years ago

Homework help

Mathematics

1 answer:

photoshop1234 [79]3 years ago

8 0

1.) 20 miles for his round trip each day

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3/4 + 2/3 = 1 5/12 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

satela [25.4K]

3/4+2/3= 17/12

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Let alpha and beta be conjugate complex numbers such that frac{\alpha}{\beta^2} is a real number and alpha - \beta| = 2 \sqrt{3}

miskamm [114]

Answer:

$-3+i\sqrt{3} , 1+\sqrt{3}$

Step-by-step explanation:

Given that alpha and beta be conjugate complex numbers

such that frac{\alpha}{\beta^2} is a real number and alpha - \beta| = 2 \sqrt{3}.

Let

$\alpha = x+iy\\\beta = x-iy$

since they are conjugates

$\alpha-\beta = x+iy-(x-iy)\\= 2iy= 2i\sqrt{3} \\y =\sqrt{3}$

$\frac{\alpha}{\beta^2} }\\=\frac{x+i\sqrt{3} }{(x-i\sqrt{3})^2} \\=\frac{x+i\sqrt{3}}{x^2-3-2i\sqrt{3}} \\=\frac{x+i\sqrt{3}((x^2-3+2i\sqrt{3}) }{(x^2-3-2i\sqrt{3)}(x^2-3-2i\sqrt{3})}$

Imaginary part of the above =0

i.e. $\sqrt{3} (x^2-3)+2x\sqrt{3} =0\\x^2+2x-3=0\\(x+3)(x-1) =0\\x=-3,1$

So the value of alpha = $-3+i\sqrt{3} , 1+\sqrt{3}$

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3 years ago

How long will it take light to travel to Earth from the Sun according to the equation?

melomori [17]

Average of eight minutes and twenty seconds to travel from the sun to the earth

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3 years ago

To branily ani't buy the plus so please stop i don't want it

mario62 [17]

Answer:

fr tho

Step-by-step explanation:

like bro i dont need no brainly plus

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3 years ago

I need help and be available as of right now plz!

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3 years ago