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Sergeu [11.5K]
3 years ago
5

6. A semicircular disk of radius 3 ft. is revolved about its diameter (straight side) one complete revolution. Describe the soli

d determined by this revolution, and then find the volume of the solid.
Mathematics
1 answer:
kaheart [24]3 years ago
5 0

Answer:

) one complete revolution. Describe the solid determined by this revolution, and then find the volume of the solid.

Step-by-step explanation:

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Help please asap!!!!!!!!!
goldenfox [79]
Try C but im not 100% sure though
3 0
3 years ago
I need help to solve please
antiseptic1488 [7]

Answer:

<h2><em><u>x = 52</u></em></h2>

Step-by-step explanation:

<em><u>Known:</u></em>

What to find = x

Exterior angle = 142

Right angle = 90

<em><u>Unknown:</u></em>

what unknown value is = ?

Interior angle = ?

<em><u>1. Find the angle of the interior angles.</u></em>

180 - 142 = 38

<em><u>2. Add the two known angles</u></em>

38 + 90 = 128

<em><u>3. Subtract from 180</u></em>

180 - 128 = 52

<h2><em><u>x = 52 is the answer.</u></em></h2>

Hope this helped,

Kavitha Banarjee

6 0
3 years ago
Where does the graph of y=2x2-x-3 cross as the x-axis?
tiny-mole [99]
This can be determined by finding the x-intercept. In doing so, we let y=0 to find the value of x.

y= 2x^2 -x -3
[0 = 2x^2 -x-3]÷2
0 = x^2 -1/2 x - 3/2

Complete the squares:

1/16 + 3/2 = x^2 - 1/2x + 1/16
25/16 = (x -1/4)^2
sqrt (25/16) = x - 1/4
+/- 5/4 = x - 1/4

Thus,
x = 1/4 + 5/4 = 3/2
x = 1/4 - 5/4 = -1

Thus, the graph crosses at x = 3/2 and x = -1.
6 0
3 years ago
A number is multiplied by 3. If 3 is subtracted from the product you get 24.
vladimir1956 [14]
Nine is the answer cuz it equals 27 then subtract 2 equals 24
3 0
3 years ago
Read 2 more answers
Let f(x) = -8x + 4 and g(x) = 3x2 + 5. Find f(7) + g(7) .
VMariaS [17]

Answer:

-7

Step-by-step explanation:

substitute both x's for 7:

(-8(7)+4)+ (3(7)2+5)

= -54 + 47

= -7

6 0
2 years ago
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