Answer:
47.91 units²
Step-by-step explanation:
This can be solved using Heron's triangle (see attached)
in this case, your lengths are
a = 3+9=12
b=3+5=8
c=5+9=14
Hence,.
S = (1/2) x (a + b + c) = (1/2) (12+8+14) = 17
(s - a) = 17 -12 = 5
(s - b) = 9
(s - c) = 3
Area = √ [ s (s-a) (s-b) (s-c) ]
= √ [ 17 x 5 x 9 x 3 ] = √2295 = 47.9061 = 47.91 units² (rounded to nearest hundreth)
Answer:
Step-by-step explanation:
Given that,
We know that,
So,
So,
So, the value of the given expression is equal to
1. Subtract 1/3 from 7/9.
1/3 and 7/9 : Both denominators of 3 and 9 go into 9.
2. 1/3* 3 = 3/9 7/9*1 = 7/9
3.3/9 - 7/9 = 4/9 OR 2 1/9
Answer:
<h2>
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Step-by-step explanation:
(–3s + 2t)(4s – t)
= -3s (4s - t) + 2t(4s - t)
Well I would think the answer would be about 220