Answer:
-275
Step-by-step explanation:
It's asap so no explanation
Yes. The ratio is 2/6 which is 1/3 and 3/9 which is also one 1/3. The ratios are the same.
Best way to solve this is by using
s=(12+8+17)/2
=18.5
using the formulae
area =43.5
Answer:
3.60555 or 3.61
Step-by-step explanation:
Let Bea = x
Therefore Andrew = x + 2
Chris = x - 3
Andrew * Chris = 66
(x + 2)(x - 3) = 66 Remove the brackets.
x^2 + 2x - 3x - 6 = 66
x^2 - x - 6 = 66 Subtract 66 from both sides.
x^2 - x - 72 = 0
(x - 9)(x + 8) = 0
Find the possible values of Bea's age
x - 9 = 0
x = 9 That value works. She can be plus 9 years old.
x + 8 = 0
x = - 8. There's no way she can be - 8 years old
So Bea is 9.
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