Answer:
c = 13
Step-by-step explanation:
pythogoras theorem
a² + b² = c²
5² = 25
12² = 144
25 + 144<em> </em>= 169
√169 = 13
c = 13
You would just need to take the square root of 121 since it is square. So:
√121= 11 inches per side
Step-by-step explanation:
Substitute the y in the 1st equation with the 2nd equation.
7x + 10(2x + 9) = 36
7x + 20x + 90 = 36
27x + 90 = 36
3x + 10 = 4
3x = -6
x = -2
So now we can find y.
y = 2x + 9 = 2(-2) + 9 = (-4) + 9 = 5.
So x = -2, y = 5.
Answer:
yes
Step-by-step explanation:
10 is half of 20 but the equation is 11/20 therefore 11/20 is greater than 10/20=1/2
the least common multiple is...
(32,28,24) = 2^5 * 3 * 7 = 672