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olganol [36]
4 years ago
14

Evaluate each expression if a=4, b=6 and c=3 7c+8a-5b

Mathematics
2 answers:
kherson [118]4 years ago
7 0

Answer:

23

Step-by-step explanation:

7(3)+8(4)-5(6)

21+32-30

53-30

23

tankabanditka [31]4 years ago
3 0

Answer: 38

Step-by-step explanation:

To solve this problem, you are simply going to plug in the values for the numbers into the equation so it would look like this:

7(3)+8(4)-5(6)

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Step-by-step explanation:

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Answer:

\sf x  = 4\sqrt{2}

Given:

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<u>using cosine rule:</u>

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