9514 1404 393
Answer:
530.66 cm²
Step-by-step explanation:
A formula for the area of the circular disc can be written as ...
A = C²/(4π)
A = (81.64²)/(4·3.14) = 6665.0896/12.56
A = 530.66 . . . . square centimeters
-1/3x-4/3y=2
1/3x-2/3y=4
First realize that the coefficient of x is -1/3 and 1/3 which can be eliminated with addition
Adding the two equations together gets
-6/3y=6
Simplify
-2y=6
y=-3
Substitute back into original equation
1/3x-2/3(-3)=4
1/3x+2=4
1/3x=2
x=6
Answer
x=6, y=-3
Check answer
-1/3(6)-4/3(-3) =?= 2
-2+4=2
2=2
Done!
Answer:
The answer is, " About 56% of those who prefer baseball are eight graders"
Step by Step Explanation:
Step 1: Turn 56% to a decimal, you get 0.56
Step 2: Multiply 0.56 by 68, the total amount of people who like baseball
Step 3 : you get 38.08 ( Don't mind the extra .08, just round )
Step 4 : You celebrate with a little victory dance!!!!!
Answer:
y=0
Step-by-step explanation:
A triangle with sides measuring 300, 400 and 700 because 300+400+700=1400 which is higher than the first triangle 300+400+500=1200
