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3 years ago

How to solve 3x +14 + 3x + 10

Mathematics

1 answer:

andrezito [222]3 years ago

4 0

Answer:

The answer is 6x+24

Step-by-step explanation:

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Determine whether the following statements are true and give an explanation or counterexample.

Furkat [3]

Answer:

A) When using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. True.

The Shell method is a technique used to find the volume of a solid of revolution. Here, we take thin shells with axis coinciding with the axis about which the region whose volume is to be found, is revolved.

B) If a region is revolved about the y-axis, then the shell method must be used. False.

This method can be used with any axis of rotation.

C) If a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y. True.

The washer method uses thin disks with infinite width but the shell method uses thin concentric shells with infinite width about the axis of revolution. So, the statement is true.

5 0

3 years ago

i really really really need help with this math question i’m giving away FREE points and BRAINLIEST for correct answer

Travka [436]

B is the correct answer. please mark brainliest.

8 0

3 years ago

Read 2 more answers

Find the midpoint of the line segment with end coordinates of:<br> (1,4) and (5,2)

poizon [28]

Midpoint formula: (x1+x2)/2, (y1+y2)/2
(1+5)/2 = 6/2 = 3 for x
(5+2)/2 = 7/2 = 3.5 for y
Midpoint: (3,3.5)

8 0

3 years ago

You are designing a rectangular garden. the garden will be enclosed by fencing on three sides and by a house on the fourth side.

RUDIKE [14]

Suppose the dimensions of the rectangle is x by y and let the side enclosed by a house be one of the sides measuring x, then the sides that is to be enclosed are two sides measuring y and one side measuring x.

Thus, the length of fencing needed is given by

P = x + 2y

The area of the rectangle is given by xy,

i.e.

$xy = 288 \\ \\ \\ \\ \Rightarrow y= \frac{288}{x}$

Substituting for y into the equation for the length of fencing needed, we have

$P=x+2\left( \frac{288}{x} \right)=x+ \frac{576}{x}$

For the amount of fencing to be minimum, then

$\frac{dP}{dx} =0 \\ \\ \Rightarrow1- \frac{576}{x^2} =0 \\ \\ \Rightarrow \frac{576}{x^2} =1 \\ \\ \Rightarrow x^2=576 \\ \\ \Rightarrow x=\sqrt{576}=24$

Now, recall that

$y= \frac{288}{x} = \frac{288}{24} =12$

Thus, the length of fencing needed is given by

P = x + 2y = 24 + 2(12) = 24 + 24 = 48.

Therefore, 48 feets of fencing is needed to enclose the garden.

8 0

3 years ago

What is an equation of the line that passes through the points (-7,3) and (-4,3)?

sammy [17]

Answer:

Step-by-step explanation:

Slope = 0

y-y1=m(x-x1)

y-3=0

y = 3

3 0

3 years ago