Answer:
7.5 cm²
Step-by-step explanation:
Dimensions of the large ∆:
Dimensions of the small ∆:
Difference between the area of the large and the small ∆ = 13.5 - 6 = 7.5 cm²
How is a rational number that is not an integer different from a rational number that is an integer?
1 answer:
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Answer:
Step-by-step explanation:
It's like solving any equation, except we have letters instead of numbers .
k = 3tm + rs {subtract rs from both sides}
k - rs = 3tm {divide both sides by (3m)}
{swap sides}
m≠0
{m must be ≠0 because you cannot divide by 0. There is no t for m=0}
Answer:
x=9 x=-1
Step-by-step explanation:
x²-8x-9=0 a=1 b=-8 c=-9
you have to use the quadratic formula to get the values.
