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3 years ago

WILL GIVE BRAINLIEST

Mathematics

2 answers:

Dovator [93]3 years ago

4 0

Answer:

V=πr²h

V=(3.14)(15cm)²(325cm)

V=229,613 cm³

masha68 [24]3 years ago

3 0

Answer:

Step-by-step explanation:

trust me i used online calculator and got that exact answer

pls make me brainliest :)

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How to write (-4,5) and (0,-4) in y=mx+b

anzhelika [568]

Answer:

y = 9/5 x -4

Step-by-step explanation:

first find slope or m

slope is change in y over the change in x

-4-5/0-5 =-9/-5 = 9/5

the (0, -4) is the y intercept or b

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3 years ago

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3 years ago

Find the inverse of the given function.

kodGreya [7K]

For this case we must find the inverse of the following function:

$f (x) = - \frac {1} {2} \sqrt {x + 3}$

We follow the steps below:

Replace f(x) with y:

$y = -\frac {1} {2} \sqrt {x + 3}$

We exchange the variables:

$x = - \frac {1} {2} \sqrt {y + 3}$

We solve for "y":

$- \frac {1} {2} \sqrt {y + 3} = x$

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$\sqrt {y + 3} = - 2x$

We raise both sides of the equation to the square to eliminate the radical:

$(\sqrt {y + 3}) ^ 2 = (- 2x) ^ 2\\y + 3 = 4x ^ 2$

We subtract 3 from both sides of the equation:

$y = 4x ^ 2-3$

We change y by f ^ {- 1} (x):

$f ^ {- 1} (x) = 4x ^ 2-3$

Answer: $f ^ {- 1} (x) = 4x ^ 2-3$

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4 years ago

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1/3 + a = 5/4 a = ( ) Help plz!

Veronika [31]

Answer: a=4/3

Step-by-step explanation:

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The y-intercept of the line whose equation is 3x - 2y = 6 is

Nimfa-mama [501]

Y-intercept happens when the x-coordinate equals zero

Subtitute x with 0 from the equation
3x - 2y = 6
3(0) - 2y = 6
0 - 2y = 6
-2y = 6
y = 6/-2
y = -3

The y-intercept is -3

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3 years ago