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Umnica [9.8K]
3 years ago
7

My sis wants me to post this...she needs help with hw

Mathematics
2 answers:
True [87]3 years ago
6 0

Answer:

x=77/2    Decimal: x=38.5

Step-by-step explanation:

miss Akunina [59]3 years ago
4 0

Answer:

x= 77/2

Step-by-step explanation:

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<h3>Equation</h3>

2n - 1

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  • Substitute n = 7 into the equation

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<h3>What is mathematical expression?</h3><h3 />

Mathematical expression is an expression which involves the combination of numbers and variables in a valid way, in a function of addition, subtraction, multiplication, division and exponentiation

Therefore, the value of the expression 2n - 1 when n = 7 is 13.

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brainly.com/question/13729904

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