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2 years ago

Hey can anyone help with this question please and thank you

Mathematics

2 answers:

Anna11 [10]2 years ago

7 0

Answer:

X=89 degrees

Hope this helps

lubasha [3.4K]2 years ago

4 0

(x-3) + (x+5) = 180°

2x + 2 = 180° --> Subtract 2 from both sides

2x = 178° --> Divide both sides by 2

x = 89°

☆Proof your answer☆

(89 - 3) + (89 + 5) = 180

86 + 94 = 180 ✅

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Evaluate.<br><br> (1/4)^-2 - (5^0x2) x 1^-1

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Arithmetic expressions are best evaluated using a reliable calculator. The Google calculator always follows the Order of Operations, so can give you a good answer to such questions.

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= 16 - (1)(2)(1) . . . . evaluate the exponents first

= 16 -2 . . . . . . . . . evaluate the product next

= 14 . . . . . . . . . . . finally, evaluate the sum

___

The rule of exponents is ...

a^-b = 1/(a^b)