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Sauron [17]
2 years ago
5

Need help with homework plz, also will give brainiest to who ever gets the question right first!

Mathematics
1 answer:
Degger [83]2 years ago
7 0

Answer: x = 5/7

Step-by-step explanation:

The numerator is the power, while the denominator is the index (thing next to radical).

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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
What is the aswer to 35.89÷3.7
Y_Kistochka [10]
If you just divide both you get 9.7
8 0
3 years ago
How much money does Conor earn each minute he does yard work, if he works 3.25 hours at $9 an hour?
LenaWriter [7]

Answer:

$2.76

Step-by-step explanation:

9/3.25=2.76

8 0
3 years ago
A + b + c =-10 <br> x + y + z =-10<br><br> what is <br> −6c−6b+6z+6x+6y−6a?
shutvik [7]
I’m not to sure I was wondering the same thing
4 0
3 years ago
Find the hypotenuse of a right triangle that has a 13cm leg and a height of 7cm
12345 [234]

Answer:

14.76 cm

Step-by-step explanation:

Use the pythagorean theorem:

a² + b² = c²

Plug in the side lengths and solve for c:

7² + 13² = c²

49 + 169 = c²

218 = c²

14.76 = c

So, the hypotenuse is approximately 14.76 cm

8 0
2 years ago
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