3 years ago

Solve by completing the square: 5x2 + 20x + 32 = 0

1 answer:

5 0

Your answer is no solution (because a negative square root doesn't exist)
first, you divide all sides by five and then take b, half it then square it

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Delvig [45]

The answer is 2 ° C because 5 + 4 + -3 /3 = 2 ° C

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3 years ago

Evaluate 8-2. A. -16 B. -64 C. -1/64 D. 1/64

makvit [3.9K]

I'm assuming you meant to write 8^(-2) or $8^{-2}$ where the -2 is the exponent over the 8.

If my assumption is correct, then we use the rule $a^{-b} = \frac{1}{a^b}$

So,

$a^{-b} = \frac{1}{a^b}\\\\8^{-2} = \frac{1}{8^2}\\\\8^{-2} = \frac{1}{64}$

<h3>Answer: Choice D. 1/64</h3>

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2 years ago

If one person recruits five people and each recruited person recruits 5 more, and so on, 15 cycles; how many people would that b

jek_recluse [69]

Answer:

y=5^x

5^15= 30517578125 people

Step-by-step explanation:

x=# of cycles= 15 cycles

y= #of people recruited = what we're figuring out

Plug in 15 for x in the equation y=5^x

y= 5^15= 30517578125 people

3 0

3 years ago

Express each number in scientific notation. 18 8,888,800

Olenka [21]

$scientific\ notation:a\cdot10^n\ where\ a\in[1;\ 10)\ and\ n\in\mathbb{Z}\\==================================\\\\1\underbrace{8}_{\leftarrow1}=1.8\cdot10^{1}\\\\8\underbrace{,888,800}_{\leftarrow6}=8.888800\cdot10^6=8.8888\cdot106$

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3 years ago

Read 2 more answers

Create a scenario that could be represented by the graph above. Please help !!

adoni [48]

After 2 hours of reading, you read 10 chapters (or pages) of a book. You could also say after 2 days, it snowed 10 inches.

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2 years ago