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3 years ago

Which of the following graphs is decreasing for all values of x?

Mathematics

1 answer:

sergeinik [125]3 years ago

5 0

Answer:

Step-by-step explanation:

please give branleist

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WHAT WOULD THISSS BEEEEE ANYONEEE!

Eva8 [605]

Answer:

Step-by-step explanation:

12×12=144

12 squared equals 144 so square root is 12.

7 0

2 years ago

Read 2 more answers

The graph of the equation x - y = 4

Sophie [7]

The answer should be A

5 0

3 years ago

On a scale drawing, a bicycle is 6 4/5 inches tall. The scale factor is 1/6. Find the height of the bicycle

Fantom [35]

The height will be six times what is on the drawing.

6 4/5 x 6 = 36 24/5 = 40 4/5 inches tall.

3 0

3 years ago

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

3 0

3 years ago

Help me check my answer!

astra-53 [7]

Step-by-step explanation:

ah, here you go.

come on, now. you know this now ...

again, mutually exclusive attributes in the table (no overlap here) allow us to add the numbers for a total :

4+2+12+10 = 28 students in total.

how many of those 28 fulfill our desired criteria (has a brother) ?

well, it is the sum of the column "has a brother", as it does not matter, if there is also a sister or not.

so, it is 4 + 12 = 16

therefore, the probability to pick a student randomly, who has a brother is

16/28 = 4/7 = 0.571428571...

5 0

2 years ago