Answer:
1000
Step-by-step explanation:
The population of the suburb after each decade d is given by the equation as follows :

We need to evaluate the expression for d = -2.
Put d = -2 in the above equation. So,

So, if d = -2, then the population of the suburb is equal to 1000.
Ans
y>-5x+3 meen the area abuv the strate line y=-5x+3
line go thru point (0,3) & hav slope=-5=downhill
7,912.8 inch³ of aluminum is needed to make 70 metal balls.
Step-by-step explanation:
Step 1:
The area of a sphere is calculated by multiplying
with π and the cube of the radius (r³).
In the given problem, the diameter is 6 inches. So the radius of the spheres is 3 inches.
The volume of a sphere,
So if r = 3 inches and π = 3.14,
cubic inches.
So for a single aluminum ball, 113.04 inch³ of aluminum is needed.
Step 2:
If 113.04 inch³ of aluminum is used for 1 ball, then we multiply 70 with this value to determine the aluminum needed for 70 such balls.
The aluminum needed for 70 metal balls
inch³.
So 7,912.8 inch³ of aluminum is needed to make 70 metal balls.
Answer:
a lot
Step-by-step explanation:
Well.. I'm not sure if I remember this correctly but doesn't "i" represent the square root of -1? Therefore if you square a square root, they cancel out and you're left with -1 as your answer.
Steps would be to:
change "i" to the square root of -1
put the exponent 2 outside of that
cancel the square root and the exponent
answer= -1