Find the product of (x² - 5)² using identities

Mathematics

1 answer:

timama [110]3 years ago

6 0

Answer:

Step-by-step explanation:

by idetity : (a - b)²= a² +b² -2ab

for : (x² - 5)² you have a = x² and b = 5

(x² - 5)²= (x²)²+5² - 2(5)(x²)

(x² - 5)²= x^4+25 -10x²

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What is the units digit of 2 to the 50th power

11111nata11111 [884]

Notice that

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$2^2=4$
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$2^4=16$
$2^5=32$

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We can write $50=4(12)+2$ , and since $3=4(0)+2$ , it follows that $2^{50}$ and $2^3$ share the same units digits. So the units digit of $2^{54}$ is 8.

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3 years ago

A government official is in charge of allocating social programs throughout the city of Vancouver. He will decide where these so

otez555 [7]

Answer: (0.132132, 0.274368)

Step-by-step explanation:

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Confidence interval for population :

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