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xxTIMURxx [149]
3 years ago
7

An automobile engineer is redesigning a conical chamber that was originally specified to be 12 inches long with a circular base

of diameter
5.7 inches. In the new design, the chamber is scaled by a factor of 1.5.
The volume of the original chamber is
V cubic inches. This i
v cubic inches less than the volume of the new
chamber.
Mathematics
1 answer:
kirill115 [55]3 years ago
6 0

Answer:

the original volume is lesser than the new volume by 242.47 in³

Step-by-step explanation:

Volume of a cone is;

V = ⅓πr²h

Where;

r is radius

h is height

For the original chamber;

r = 5.7/2 = 2.85 inches

h = 12 inches

Volume of this original chamber is;

V_orig = ⅓ × π × 2.85² × 12

V_orig = 102.02 in³

In the new design, the chamber is scaled by a factor of 1.5.

Thus;

r_new = 2.85 × 1.5 = 4.275 inches

h_new = 12 × 1.5 = 18 inches

V_new = ⅓ × π × 4.275² × 18

V_new = 344.49 inch³

V_new - V_orig = 344.49 - 102.02 =

Thus, the original volume is lesser than the new volume by 242.47 in³

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3 years ago
Could you help me out?<br> -1 5/6 x 4 6/1<br> a -11/25<br> b -9<br> c 1<br> d -7 23/36
Vlad [161]

Answer:

The answer is not there.

Step-by-step explanation:

-1 5/6 x 4 6/1

-(1 x 6 + 5/6) x (4 x 1 + 6)

-11/6 x 10

-110/6

Simplified

-55/3 or -18 1/3

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3 years ago
How to solve 4y=x 3x- y=70 using substitution
creativ13 [48]
X = 4y
3x - y = 70

substitute the x in the second equation with the other half of the first equation.

3(4y) - y = 70
12y - y = 70
11y = 70
y = 6.36 repeating, or 6 4/11

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x = 4 (6 4/11)
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NEED HELP ASAP WILL GIVE BRAINLIEST REAL ANSWERS ONLY PLZ WILL REPORT FAKE ANSWERS
BlackZzzverrR [31]

Answer:

Option C. f(n) = 16(3/2)⁽ⁿ¯¹⁾

Step-by-step explanation:

To know which option is correct, do the following:

For Option A

f(n) = 3/2(n – 1) + 16

n = 1

f(n) = 3/2(1 – 1) + 16

f(n) = 3/2(0) + 16

f(n) = 16

n = 2

f(n) = 3/2(n – 1) + 16

f(n) = 3/2(2 – 1) + 16

f(n) = 3/2(1) + 16

f(n) = 3/2 + 16

f(n) = 1.5 + 16

f(n) = 17.5

For Option B

f(n) = 3/2(16)⁽ⁿ¯¹⁾

n = 1

f(n) = 3/2(16)⁽¹¯¹⁾

f(n) = 3/2(16)⁰

f(n) = 3/2 × 1

f(n) = 1

For Option C

f(n) = 16(3/2)⁽ⁿ¯¹⁾

n = 1

f(n) = 16(3/2)⁽¹¯¹⁾

f(n) = 16(3/2)⁰

f(n) = 16 × 1

f(n) = 16

n = 2

f(n) = 16(3/2)⁽ⁿ¯¹⁾

f(n) = 16(3/2)⁽²¯¹⁾

f(n) = 16(3/2)¹

f(n) = 16(3/2)

f(n) = 8 × 3

f(n) = 24

n = 3

f(n) = 16(3/2)⁽ⁿ¯¹⁾

f(n) = 16(3/2)⁽³¯¹⁾

f(n) = 16(3/2)²

f(n) = 16(9/4)

f(n) = 4 × 9

f(n) = 36

For Option D

f(n) = 8n + 8

n = 1

f(n) = 8(1) + 8

f(n) = 8 + 8

f(n) = 16

n = 2

f(n) = 8n + 8

f(n) = 8(2) + 8

f(n) = 16 + 8

f(n) = 24

n = 3

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f(n) = 8(3) + 8

f(n) = 24 + 8

f(n) = 32

From the above illustration, only option C describes the sequence.

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sashaice [31]

Answer:

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Step-by-step explanation:

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