Answer:


Step-by-step explanation:
step 1
Find the surface area
we know that
the surface area of a sphere is equal to

substitute

substitute the approximate value of pi (3.14)

step 2
Find the volume
The volume is equal to

substitute


Answer:
-1/2
Step-by-step explanation:
m=y2-y1/x2-x1
-12-(-4)=(-8)
0-(-16)=16
-8/16
-8/16=(-1/2)
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Answer:
40
Step-by-step explanation:
0.143 filling in 20 characters
Answer:
Blue cars, B = 63 cars
Step-by-step explanation:
Let the blue cars be B.
Let the red cars be R.
Given the following data;
Ratio of B:R = 9:7 = 9 + 7 = 16
Red cars, R = 49
To find the number of blue cars;
First of all, we would determine the total number of cars using the expression;
R = 7/16 * x = 49
7x = 49 * 16
7x = 784
x = 112 cars
Now, we can find the number of blue cars;
B = 9/16 * 112
B = 1008/16
Blue cars, B = 63 cars