0.0000009
.9 times 10 is 9, so then you have to move it back -6 times behind the decimal.
Answer: 9ft² and 12.25ft²
Step-by-step explanation:
The expression that is equivalent to (-2)^4/(-2)^2 is (-2)^6/(-2)^4
<h3>How to determine the expression that is equivalent to (-2)^4/(-2)^2?</h3>
The expression is given as:
(-2)^4/(-2)^2
Apply the law of indices
(-2)^4/(-2)^2 = (-2)^(4 -2)
4 - 2 has the same value as 6 - 4
So, we have:
(-2)^4/(-2)^2 = (-2)^(6-4)
Apply the law of indices
(-2)^4/(-2)^2 = (-2)^6/(-2)^4
Hence, the expression that is equivalent to (-2)^4/(-2)^2 is (-2)^6/(-2)^4
Read more about equivalent expressions at:
brainly.com/question/2972832
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Answer:
220 feet deep.
Step-by-step explanation:
-40+180 feet lower= 220
580-185-175=220 feet deep would be your subtraction expression for number one.
