98 divided by 7
1. 98-round to 100
    7-round to 10
100 divided by 10=10
So 98 divided by 7 is about 10
That is one way
 
        
             
        
        
        
Hey , here is the answer to ur question.....!
Given: Radii is in the ratio 3:4
To find : ratio of Surface area of the two distinct spheres 
Solution: Surface area of a sphere =4* pi *r^2
=>(3/4)^2=9/16
Therefore , the ratio of the areas of teh two distinct spheres=9:16
Hope this helps u!!!!!!.........
 
        
             
        
        
        
3.5% of 600...turn percent to a decimal..." of " means multiply
0.035 * 600 = 21 <=== 21 phones are likely to be defective
        
                    
             
        
        
        
4y^2 + 2 - 2 = 38 - 2 (subtract both side by 2)
4y^2 = 36
Divide by 4:
y^2 = 9
y = 
y = 3
 
        
                    
             
        
        
        
Answer:
x = 70 degrees,  y = 35 degrees.
Step-by-step explanation:
The angle marked  x  is a central angle, so its measure is the <u>same</u> as the measure of the intercepted arc.
The angle marked  y  is an inscribed angle, so its measure is <u>half</u> the measure of the intercepted arc.