Step-by-step explanation:
<em>Given </em>
<em>circumference </em><em>=</em><em> </em><em>1</em><em>2</em><em> </em><em>inch</em>
<em>π</em><em> </em><em>=</em><em> </em><em>3</em><em>.</em><em>1</em><em>4</em>
<em>radius </em><em>(</em><em>r) </em><em> </em><em>=</em><em> </em><em>?</em>
<em>We </em><em>know </em>
<em>circumference </em><em>=</em><em> </em><em>2</em><em>π</em><em>r </em>
<em>1</em><em>2</em><em> </em><em> </em><em>=</em><em> </em><em>2</em><em>*</em><em> </em><em>3</em><em>.</em><em>1</em><em>4</em><em> </em><em>*</em><em> </em><em>r</em>
<em>r </em><em>=</em><em> </em><em>1</em><em>2</em><em> </em><em>/</em><em> </em><em>6</em><em>.</em><em>2</em><em>8</em>
<em>Therefore </em><em> </em><em>r </em><em>=</em><em> </em><em>1</em><em>.</em><em>9</em><em>1</em><em> </em><em>inch</em>
 
        
             
        
        
        
Answer:
 ft
 ft
Step-by-step explanation:
 This is the formula to find satellite's escape velocity V , where R is earth's radius, h is the satellite's height from the earth surface and g is the earth's gravitational constant.
 This is the formula to find satellite's escape velocity V , where R is earth's radius, h is the satellite's height from the earth surface and g is the earth's gravitational constant.
 (Multiplying to clear the fractions)
   (Multiplying to clear the fractions)
(R+h)


Now, we can determine height of satellite from the surface of the earth
by putting the values in above equation

 
        
             
        
        
        
Mountain bike trials also it <span>is a discipline of mountain </span>biking<span> that the rider attempts to pass through an obstacle course without setting foot to ground.</span>
        
             
        
        
        
Answer:
B is correct option
Step-by-step explanation:
The correct option is B:
Convert 3 1/2 inches in feet by proportion:
3 1/2 = 7/2
1/4 / 7/2 = 1/x
1/2 / 7 =1/x
1/2 *x = 7
x= 7*2
x= 14ft
Convert 5 1/2 into feet
5 1/4 = 21/4
1/4 / 21/4 = 1/y
THE DENOMINATORS WILL BE CANCELLED OUT BY EACH OTHER.
1/21 = 1/y
y = 21ft
Therefore it is 14ft by 21ft, which is option B....