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GarryVolchara [31]
3 years ago
11

A student calculates the density of an unknown solid. The mass is 10.04

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
4 0

Answer:

D=1.22g/cubic cm

Step-by-step explanation:

D=M/V

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Use the shell method to find the volume of the solid generated by revolving the region bounded by the line y=x+2 and the parabol
Viktor [21]

Answer:

8 π or

25.13 unit^3 to the nearest hundredth.

Step-by-step explanation:

(A)

The height of the shell is (2 + x - x^2) and  the radius is (2 - x).

V = 2π ∫(2 - x)(x + 2 - x^2) dx  between the limits x = 0 and x = 2.

=  2π ∫ (2x + 4 - 2x^2 - x^2 - 2x + x^3) dx

 = 2π ∫ (x^3 - 3x^2 + 4 ) dx

= 2π [ x^4/4 - x^3 + 4x ]  between x = 0 and x = 2

= 2 π [4 - 8 + 8 )

= 2 π * 4

= 8π

= 25.13 unit^3 to the nearest hundredth.

4 0
3 years ago
Help me please, please help
Sergio [31]

Answer:

Heyo. The answer is 60.48

Step-by-step explanation:

This is pretty easy, all you have to do is multiply the length, height, and width. Remember this. LxHxW. Thats is the formula. You do 4.2 cm, multiplied by 3.2 cm, then multiply that by 4.5 cm. Hope this helps! :)

8 0
3 years ago
A couple wants to buy a house. They can only afford a $30,000 down payment. They
ch4aika [34]

Answer:

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8 0
3 years ago
Enter the value for x that makes the equation 2(x−4)=6x+8 true.<br> x =
krek1111 [17]

Answer:

X = -4

Step-by-step explanation:

Negative 4, hope this helps

5 0
3 years ago
WILL MARK BRAINLYIST
rodikova [14]

Answer:

D = 45 and C = 26

Step-by-step explanation:

The bigger triangle has a 90 degree corner add that to 64 and you will get 164 (all of the triangles angles have to add to 180) from 180 subtract 164 and you get 26 which is C's answer

For D just divide 90 by 2 (90/2)=45

7 0
3 years ago
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