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blsea [12.9K]
3 years ago
6

Which could be the base shape of the cylinder

Mathematics
2 answers:
Inessa [10]3 years ago
8 0

Answer:

Obviously it is going to be a circle.

Step-by-step explanation:

olga_2 [115]3 years ago
5 0

Answer: i think it is a circle

Step-by-step explanation: because on the top and bottom its circle

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A square is inscribed in a circle . If the area of the square is 9 inch square what is the ratio of the radius of the circle to
OLga [1]

Answer:

  (√2)/2

Step-by-step explanation:

The ratio of the radius of the circle to the side of the inscribed square is the same regardless of the size of the objects.

The radius of the circle is half the length of the diagonal of the square. For simplicity, we can call the side of the square 1, so its diagonal is √(1²+1²) = √2 by the Pythagorean theorem. The radius is half that value, so is (√2)/2. The desired ratio is this value divided by 1.

Scaling up our unit square to one with a side length of 3 inches, we have ...

  radius/side = ((3√2)/2) / 3 = (√2)/2

_____

A square with a side length of 3 inches will have an area of (3 in)² = 9 in².

7 0
3 years ago
If sin a = - 4/5<br>and cos a &gt; 0, find tan a and sec a.​
Nina [5.8K]

Answer:

tan(a) = -4/3

sec(a) = 5/3

Step-by-step explanation:

sine is opposite over hypotenuse.  so no we have a triangle with a hypotenuse of 5 and an opposite side relative to some angle a of -4.  the hypotenuse is never negative.  

so draw a right triangle, mark one of the non right angles as a then the side opposite to that is -4 and the hypotenuse is 5.  use the pythagorean theorem to find the remaining angle.  The result could be positive or negative, but the questions specifically tells us we want the positive version.

b^2 + -4^2 = 5^2

b = 3

tangent is opposite over adjacent.  for a we know the opposite is 3now so tan(a) = -4/3

Now, secant is 1/cos, so lets find cos(a)

cos is adjacent over hypotenuse, and we jsut found the adjacent is 3.  so cos(a) = 3/5

Now 1/cos(a) = hypotenuse over adjacent so 5/3

7 0
3 years ago
The function y=2x+6 is shifted down 8 units. What is the equation of the new function?
Usimov [2.4K]

Answer:

y = 2x -2

Step-by-step explanation:

When you shift down or up, you move down or up the y-axis. Here, the 6 was the y-intercept, so you subtract 8 from 6.

5 0
3 years ago
A pair of jeans cost 89. A jean jacket costs twice as much. What is the total cost of a jean jacket and 4 pairs of jeans?
iVinArrow [24]
Jeans=$89 jean jacket=$(89x2)
                                      $178
$(89x4+178)
    89
    x4
 $ (276 + 178)= $454                        
  
total cost = $454


  
7 0
3 years ago
Differentiation<br><br>Please help me! ​
Sunny_sXe [5.5K]

Answer:

\frac{dy}{dx}  =  - 1 \frac{5}{9}

Step-by-step explanation:

Please see the attached picture for the full solution.

☆ \frac{1}{x}  = x^{ - 1}

3 0
3 years ago
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