3 years ago

Pls help Show workings???

Mathematics

1 answer:

MAVERICK [17]3 years ago

5 0

Answer: 11.375°

Step-by-step explanation:

55 + (4x + 17) + (4x + 17) = 180° Set up equation

4x + 4x + 55 + 17 + 17 = 180° Commutative Property of Addition

8x + 89 = 180° Combine like terms

8x = 91° Subtract 89 from both sides

x = 11.375° Divide both sides by 8

Not entirely sure about this one; you might have to round the answer.

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eimsori [14]

Answer:

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Step-by-step explanation:

Arithmetic

Jack took a test where the correct answers are given as positive numbers and the incorrect answers are negative numbers.

The scores were

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The total score is the arithmetic sum of all scores, including their signs:

Total score: -65-10-15+20+30

Total score: -40

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Step-by-step explanation:

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3 years ago

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kow [346]

Answer:

128

Step-by-step explanation:

x³y²if x = 2 and y = 4

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