I would say true.....
here is an example
2x - 3y =12 and y = x-1 sub in y
2x - 3 (x-1) = 12 without parens, the final derived answer would be incorrect
(6, -4 ) the same as rotating 90 clockwise
DOG can only occupy one position in the leter group as there are only three letters allowed
4 numbers would be 10 000 possibilities (0000 - 9999)
soooo 26 x 26 x 26 x 10 000 - 10000
top triangle 1/2 b * h = 1/2 7 * 2
rectangle below 2 x 7
bottom rectangle 3 x 2
small square on L 1x1 add 'em all together
36 possible rolls
ways to roll a sum of 10
64
46
55
three ways out of 36 3/36 = 1/12
Solutions 4 and 6 means that :
(x-6)(x-4)=0
x^2 -10x + 24 =0 a = 1 b = -10 c = 24
Sub into second equation
x^2 + 10x -24 = 0
(x+12)(x-2) = 0 solutions are x = -12 and + 2 sum = -10
4 x + 2 y = 36
x+ y = 10 or y = 10-x sub this into firs equation
4x + 2 (10-x) = 36
2x + 20 = 36
x = 8 pigs 8+ y = 10 y = 2 ducks
Knucklehead.....I don't have the link....THAT is why I told them to search for it ! D'Oh!
total area to paint 18 x 10 x 2 + 2 x 8 x 10 = 520 ft2
two coats woud = 1040 ft2
1040 ft2 / 200ft2/gal = 5.2 gallons you'll need to buy 6 gallons
The value in cents of 𝑎a nickels = 5a
The value in cents of 𝑎a dimes = 10a
The value in cents of 𝑎a quarters = 25a
The value in cents of 𝑎a dimes and one quarter = 25 + 10a
The value in cents of 1111 dimes = 10(11) I assume you meant 11 and not 1111
