27) if a = 1/a
multiply both sides by a
a * a = 1/a * a
a^ 2 = 1
Answer is D) 1
28)
6 x 75 = 450
7 x 80 = 560
8 x 85 = 680
9 x 90 = 810
Total all students in class = 6 + 7 + 8 + 9 = 30 students
Total score of whole class:
450 + 560 + 680 + 810 = 2500
Average = 2500 /30 = 83.3 = 83 1/3
Answer is C) 83 1/3
⇨ The value of this <u>simplified expression</u> = -4096/1 or -4096.
<h3>
</h3>
- To solve this expression, just multiply the power base by how many times indicate the exponent, and then divide the numerator and denominator of the fraction by the same number.
Power or potentiation is a multiplication in equal factors, where there are <em>terms responsible</em> for obtaining the final result. An potency is given by
The terms of a power are:
<h3>
</h3>
- Base
- Exponent
- equal factors
- power
<h3>
</h3>
✏️ <u>Resolution/Answer</u>:

- Multiply the powers of the numbers at numerator of the fraction, with the base <em>being multiplied by how many times</em> to indicate the exponent.







- <em>Multiply </em>the power at denominator of the fraction:



- <em>Multiply </em>the numerator numbers together:




- Simplify the fraction by number 16:



- So this expression in its simplified form = -4096/1 or -4096.

★ Hope this helps! ❤️
Answer:
= 225
= 64
= 289
+
+ 
= 225 + 64 = 289
289 = 289
Hence its a right angled triangle
Hope it helps
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Thank you
Answer:
n=25
Step-by-step explanation:
so you take 12.5 divide that by 0.5
and your answer would be 25