Answer:
So they can line up every single 10 yards because there are 120 yards on a football field
Step-by-step explanation:
12 cheerleaders gives you 1 every 10 yards
hope i helped
 
        
             
        
        
        
There's two ways to do this.
The first way:
Work out the amount of sugar needed to make one cake, and then multiply that by 7. 
30 grams ÷ 4 cakes = 7.5 grams for 1 cake. 
7.5 grams × 7 cakes = 52.5 grams for 7 cakes.
The second way:
Work out the ratio of sugar:cake by doing 7 ÷ 4, and then multiplying that value by 30.
7 cakes ÷ 4 cakes = 1.75
1.75 × 30 grams = 52.5 grams for 7 cakes. 
Either way, the answer is 52.5 grams.
        
             
        
        
        
X = 650 + 60t
The cheetah must arrive at the same place at the same time:
x = 90t
650 + 60t = 90t
30t = 650
t = 650/30 ≅ 21.7 s
It takes the cheetah a little more than 20 s running at 90 ft/s to reach the moving antelope, so assuming the antelope can maintain its speed of 60, it is safe.
        
             
        
        
        
1/2bh 
1/2b4 = 18
b4= 36 
b= 9 yards
        
             
        
        
        
5.46 to 3 sig figs means the range is {5.455,5.465} and 17.74 means the range {17.735,17.745}.
p=q²/r has a maximum value when q=5.465 and r=17.735 and a minimum value when 5.455 and r=17.745.
So the range of p is 1.6769 to 1.6840. When we have 2 decimal places we get p=1.68 which accommodates the maximum and minimum values of the range. So 2 decimal places is a suitable degree of accuracy, or we could say 3 significant figures.