Answer:
751.124
Step-by-step explanation:
area of a cricle is
πr^2
take π to be 22÷7
A= πr^2
A=22÷7*15*15
A=22÷7*225
7 divides 225
= 34.142
22*34.142
A= 751.124
Answer:
9.23 x 10^-5
Step-by-step explanation:
But the decimal point behind the first number that isn't 0
Then count how many times you moved it and that is the exponent on the ten
If you moved the decimal right, it is negative exponent
If you moved the decimal left, it is a positive exponent
-2.3, -1/3, square root of 3, square root of 7, 5.1
Answer:
Dvds cost 12 games cost 19.
Step-by-step explanation:
Put the amount of dvds and video games into an equation and assign variables.
3x+2y=74
5x+2y=98
You can solve multiple ways, although I'll do graphing for this equation.
After graphing, you get 2 lines that intersect. The point of intersection is 12,19 meaning that a dvd is 12 (x) and a video game is 19 (y)
