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3 years ago

Graph Y=3/4x - 1/2 Pleaseeeee help!!

Mathematics

2 answers:

Nimfa-mama [501]3 years ago

6 0

I’m not 100% sure kind of a guess but I would x=2/3. Good luck

zalisa [80]3 years ago

5 0

Ok let me help hope this works 3/4 x 1/2= 2/3

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-64=(2cos(pi/2)+2i sin(pi/2))^n..... n=??

zvonat [6]

Answer:

The real solution is $n=6$ .

Step-by-step explanation:

$\cos(\frac{\pi}{2})=0$ while $\sin(\frac{\pi}{2})=1$

So the equation becomes:

$-64=(2(0)+2i(1))^n$

$-64=(0+2i)^n$

$-64=(2i)^n$

We know that $2^6=64$ . So let's see what $n=6$ gives us:

$(2i)^6=64i^6=64i^4i^2=64(1)(-1)=-64$ .

$-64$ is the result we wanted.

$n=6$ is therefore a solution.

4 0

3 years ago

A recipe needs 23 cup(s) of sugar for every 212 cups of flour. If you plan to use 10 cups of flour, how much sugar will you need

arlik [135]

Answer: you will need approximately 23 grams

Step-by-step explanation: but thats approximately

4 0

3 years ago

Complete the equation of the graphed linear function in point-slope form.

BlackZzzverrR [31]

They are using the point (2, 8) to write this equation. You know that because of the "y-8" in the equation, and also because it's bolded! lol. Anyways, what's missing is the slope and the x value from our point. The slope is -2. Find this by picking 2 points on the line and putting those into the slope equation. Use the bolded point and the x-intercept: (2,8) and (6,0): $m= \frac{0-8}{6-2}= \frac{-8}{4}=-2$ . As stated earlier the x coordinate in the bolded point is 2. So our equation is y-8=-2(x-2). And there you Go!

4 0

3 years ago

Please help me with this question is hard and i will give you a Brainiest

Westkost [7]

Answer:

Step-by-step explanation:

10(x-2)=-20

10x-20=-20

10x=0

x=0

5 0

3 years ago

Let f(x) = x+2/x+6 <br> f^-1(-6) =

GREYUIT [131]

We can explicitly find the inverse. If $f^{-1}(x)$ is the inverse of $f(x)$ , then

$f\left(f^{-1}(x)\right) = \dfrac{f^{-1}(x)+2}{f^{-1}(x)+6} = x$

Solve for the inverse :

$\dfrac{f^{-1}(x) + 2}{f^{-1}(x) + 6} = x$

$\dfrac{f^{-1}(x) + 6 - 4}{f^{-1}(x) + 6} = x$

$1 - \dfrac4{f^{-1}(x) + 6} = x$

$1 - x = \dfrac4{f^{-1}(x) + 6}$

$f^{-1}(x) + 6 = \dfrac4{1-x}$

$\implies f^{-1}(x) = \dfrac4{1-x} - 6$

Then when x = -6, we have

$f^{-1}(-6) = \dfrac4{1-(-6)} - 6 = \dfrac47-6 = \boxed{-\dfrac{38}7}$

Alternatively, we can first solve for x such that $f(x) = -6$ . Then taking the inverse of both sides, $x = f^{-1}(-6)$ . (The difference in this method is that we don't compute the inverse for all x.)

We have

$\dfrac{x+2}{x+6} = -6$

$x + 2 = -6 (x + 6)$

$x + 2 = -6x - 36$

$7x = -38$

$\implies x = \boxed{-\dfrac{38}7}$

8 0

3 years ago