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zhuklara [117]
3 years ago
8

Which of the following is equivalent to4−(−5∗9−1)÷2+(5)2−7?

Mathematics
2 answers:
Gala2k [10]3 years ago
8 0

Answer:

-20

Step-by-step explanation:

Follow the PEDMAS order (from top to bottom):

Parentheses

Exponents

Division and Multiplication

Addition and Subtraction

(-5 × 9 - 1) ÷ 2 + (5)2 - 7

(-45 - 1) ÷ 2 + 10 - 7

-46 ÷ 2 + 10 - 7

-23 + 10 - 7

-13 - 7

-20

juin [17]3 years ago
5 0

Answer:

-20

Step-by-step explanation:

=> (-5 * 9-1)/2+(5)2-7

Expanding parenthesis

=> (-45-1)/2+10-7

=> -46/2 + 3

=> -23 + 3

=> -20

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