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2 years ago

I need help solving this

Mathematics

2 answers:

Darya [45]2 years ago

5 0

4a+6b is the answer you have to look at the variable so for a 4a-2a+2a and b there is just one variable so it’s 6

Kruka [31]2 years ago

3 0

Answer:

4a+6b

Step-by-step explanation:

4a-2a=2a

2a+2a=4a

6b+4a

hope it helps

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Step-by-step explanation:

a, b, c

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$P_{ABC}$ = 4.3 + 2.89 + 6.81 = 14

s = 14 ÷ 2 = 7

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$P_{BCD}$ = 8.59 + 7.58 + 6.81 = 22.98

s = 22.98 ÷ 2 = 11.49

$A_{BCD}$ = $\sqrt{11.49(11.49-8.59)(11.49-7.58)(11.49-6.81)}$ = √609.7343148 ≈ 24.6928

$A_{ABCD}$ = 3.84 + 24.6928 ≈ 28.5

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