The area A of a circle is given by the formula: A = πr², where r is the radius of the circle; For this problem, it's given that r = 2.6 cm., and π (called "pi") is the famous irrational number. For this problem, let π = 3.14. = 21.23 cm² (to the nearest hundredth of a sq.
Step-by-step explanation:
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Answer:
The teahcer gave you 4/12 of a bag more than your friend.
Step-by-step explanation:
10/12 ---> 10/12
3/6 ---> 6/12
10/12 - 6/12 = 4/12
Answer:
120
Step-by-step explanation:
Find how many were there before the adoption event by dividing 84 by 0.7
84/0.7
= 120
So, there were 120 animals before the adoption event
Answer: 2x^2-7x-15
Step-by-step explanation:
reorder the terms (x*2+3)*(x-5)
multiply the parentheses
(2x+3)*(x-5)
collect like terms (2x^2-10x+3x-15)
product= 2x^2-7x-15
Answer:
x = 72 / 85
Step-by-step explanation:
x -6/7=-x/84
x + x/84 = 6/7
84/84x + 1/84x = (12*6) / (12*7)
85/84x = ( 72 ) / ( 84 )
85/84x = 72 / 84
Multiply left and right from the = sign by 84/85 and you do that so you get a division ON THE LEFT SIDE that equals as 1... See how it works:
84/85 * { 85/84 } * x = 84/85 * { ( 72 ) / ( 84 ) }
{ (84 * 85) / ( 85 * 84) } * x = ( 84 * 72 ) / ( 85 * 84 )
(7140) / ( 7140) * x =. ( 6048 ) / ( 7140)
x = 6048 / 7140
x = 72 / 85