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Nitella [24]
3 years ago
14

Which factors of -12 add to -1?

Mathematics
1 answer:
beks73 [17]3 years ago
4 0

Answer:

-4 and 3

Step-by-step explanation:

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For the region bounded by y=2x​, the​ x-axis, and x=1​, determine which of the following is​ greater: the volume of the solid ge
telo118 [61]

Answer:

The correct answer B) The volumes are equal.

Step-by-step explanation:

The area of a disk of revolution at any x about the x- axis is πy² where y=2x. If we integrate this area on the given range of values of x from x=0 to x=1 , we will get the volume of revolution about the x-axis, which here equals,

\int\limits^1_0 {(pi)y^{2} } \, dx

which when evaluated gives 4pi/3.

Now we have to calculate the volume of revolution about the y-axis. For that we have to first see by drawing the diagram that the area of the CD like disk centered about the y-axis for any y, as we rotate the triangular area given in the question would be pi - pi*x². if we integrate this area over the range of value of y that is from y=0 to y=2 , we will obtain the volume of revolution about the y-axis, which is given by,

\int\limits^2_0 {pi - pix^{2} } \, dy = \int\limits^2_0 {1 - y^{2}/4 } \, dy

If we just evaluate the integral as usual we will get 4pi/3 again(In the second step i have just replaced x with y/2 as given by the equation of the line), which is the same answer we got for the volume of revolution about the x-axis. Which means that the answer B) is correct.

7 0
3 years ago
if 2 people answered your question and they were both right but only one of them explained they answer who should I give brainli
lakkis [162]
The person who explained the answer because you can see how they got the answer or the evidence they used to get the answer
5 0
3 years ago
Question 2: Ethan has a collection of 50 DVDs. If 32 of the DVDs are comedies, what percent of the DVDs are not comedies?
gladu [14]

Answer: 36% are not comedies

Step-by-step explanation:

32/50 = 64%

100 - 64 = 36

3 0
2 years ago
What is the y-intercept of the function f(x) = –negative StartFraction 2 Over 9 EndFraction.x + ?
worty [1.4K]

fdfghjkAdf negativo

Step-by-step explanation:

7 0
3 years ago
Help please I need help
Katarina [22]
The answer should be 20
4 0
3 years ago
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