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3 years ago

7

What is |x-4| if x>4

1 answer:

NISA [10]3 years ago

7 0

Answer:

x-4

Step-by-step explanation:

If x>4, |x-4|>0 which means |x-4|=x-4

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If x equals 3= xequals 4 then use the equation 2x y -6 x equals 18 Z to find the value of y

LiRa [457]

Greetings!

"<span>If x equals 3 and z equals 4, find the value of y in the equation: </span> $12xy-6x=18z.$ "

Input the value of the variables we were given:
$12(3)y-6(3)=18(4)$
Simplify.
$36y-18=72$
Add 18 to both sides.
$(36y-18)+18=(72)+18$
Simplify.
$36y=90$
Divide both sides by 36.
$(36y)/36=(90)/36$
Simplify.
$y=5/2$
$y=2.5$

The variable, y is equal to 2.5.

Hope this helps.
-Benjamin

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4 years ago

Miguel wants to bike a total of 100 miles over the course of one week in the summer. He logs how much he bikes each day in the t

ivann1987 [24]

Answer: 15 3/5

Step-by-step explanation:

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3 years ago

Read 2 more answers

Use the method of cylindrical shells to find the volume V of the solid obtained by rotating the region bounded by the given curv

harkovskaia [24]

Answer:

Step-by-step explanation:

Let's give this a go here. The volume formula for the shell method while rotating about a horizontal line is

$V=2\pi \int\limits^a_b {p(y)h(y)} \, dy$

where p(y) is the distance from the axis of rotation (the x-axis) to the center of the solid. This is a positive distance and it is just y.

h(y) is the horizontal height of the function. Our function starts at x = 0 and ends at the function itself, so h(y) = 3 + y^2.

In the shell method when rotating about a horizontal line, we need to use x = y equations, and y-intervals. Setting up our integral then:

$V=2\pi \int\limits^3_2 {y(3+y^2)} \, dy$

We can simplify this a bit by distributing the y into the parenthesis:

$V=2\pi \int\limits^3_2 {3y+y^3} \, dy$

Integrating gives us

$V=2\pi|\frac{3y^2}{2}+\frac{y^4}{4}|$ from 2 to 3

Using the First Fundamental Theorem of Calculus:

$V=2\pi[\frac{135}{4}-\frac{40}{4}]$ which simplifies down to

$V=\frac{95\pi}{2}$

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3 years ago

Natasha had a pizza party with two of her friends.to celebrate reading 50 books each. Everyone got their own pizza. Natasha ate

Alisiya [41]

Answer:

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Step-by-step explanation:

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3 years ago

D\dx(3x^2)<br> Please answer fast.

Sloan [31]

Answer:

3x

Step-by-step explanation:

$\frac{d}{dx} (3x {}^{2} )$

$\frac{1}{x} 3 {x}^{2}$

$3x$

7 0

3 years ago