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weeeeeb [17]
3 years ago
12

Why does -2 to the second power equal -4 but (-2) to the second power equals 4?

Mathematics
2 answers:
Kruka [31]3 years ago
6 0
Your final answer would be 4
kirza4 [7]3 years ago
3 0
In -2^2 since the negative sign is not in parentheses you would solve it as 2×2=4 and then have the negative sign so it would be -4. With the parentheses you are saying that the term you are squaring is (-2) and two negatives make a positive so it would be (-2)×(-2)= 4.
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adoni [48]

Answer:

y = e^{x^2 - 3x}\\\\\\Let \ u = x^2 - 3x\\\\y = e^u\\\\\frac{dy}{du} = e^u\\\\\frac{du}{dx}  = 2x - 3\\\\y' = \frac{dy}{dx}  = \frac{dy}{du} *\frac{du}{dx} = e^u * (2x -3)\\\\Substitute \ u = x^2 -3\\\\y' = (2x -3)e^{x^2-3x}\\\\option A

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3 years ago
. Find the value of $1,300 invested at 4.2% interest compounded continuously for 5 years, 9 months. Round your final answer to t
BARSIC [14]
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5 0
3 years ago
Regan ran a total of 12 miles over the course of three track practices. How many miles would Regan have run after five practices
Ipatiy [6.2K]

Answer:

20 miles

The drawings will help

7 0
3 years ago
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Complete two ratios to describe the model. 4 dark blue triangles and 12 light blue triangles. The ratio of light blue triangles
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Answer:

1:3

Step-by-step explanation:

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5 0
3 years ago
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algol [13]
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5 0
3 years ago
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