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andrey2020 [161]
2 years ago
9

What is 5a - (8 - a) + 4a - 10

Mathematics
2 answers:
Anna007 [38]2 years ago
5 0
5a-8+a+4a-10
5a+a+4a-8-10
10a-18 ** I think
podryga [215]2 years ago
5 0
Pretend there is an invisible -1 in front of the parenthesis to distribute, then get rid of the parenthesis, then you can combine like terms.
= 5a - 1(8-a) +4a - 10       
         ^-----^                      <-- negative (-) times (x) a negative (-) equals positive = (+)
= 5a - 8 + a +4a - 10        
     ^---------^----^               <--Combine like terms      
= 5a +a +4a = 10a
= -8 -10       = -18
= 10a -18

Hope this helps!

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cestrela7 [59]

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Step-by-step explanation:

To determine the maximum height of the twig,

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v² = u² - 2gh

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That is,

Maximum height = 95 feet + 1.6 feet

Maximum height = 96.6 feet

Hence, the maximum height of the twig is 96.6 feet off the ground.

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