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faust18 [17]
3 years ago
10

Answer question 4 and 5

Mathematics
1 answer:
irakobra [83]3 years ago
7 0

Answer:

4. A 5. B

Step-by-step explanation:

A hypothesis is an educated guess. When you write a report you should use an if, then statement.

An observation is a fact, not an opinion.

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150 centimeters is equivalent to
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Hey can anyone pls answer these math problems!!
Zepler [3.9K]

Answer:

1={5 and 3} 2={0} 3={0.209 and 4.791} 4={-3 and 4} 5={1 and 9} 6={-4.303 and -0.697}

Step-by-step explanation:

Your probably confused on what a, b, and c means.

The problems are written like this.

ax^2+bx+c=0

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For example 1:

x^2-8x+15=0\\ax^2-bx-c\\a=1\\b=-8\\c=15

Then use the formula

x=\frac{-b+-\sqrt{b^2-4ac} }{2a} \\\\x=\frac{-(-8)+-\sqrt{-8^2-4(1)(15)} }{2} \\x=\frac{8+-\sqrt{64-60} }{2} \\\\x=\frac{8+-2}{2}\\

If plus then 5, if minus then 3

CHECK:

x^2-8x+15=0\\5^2-8(5)+15=0\\25-40+15=0\\0=0\\3^2-8(3)+15=0\\9-24+15=0\\0=0

Hope this helps you understand how to do this by yourself.  Now to do the rest ;-;

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2 years ago
Write, sixty-one billion, four hundred- forty -two million, six hundred sixty-nine thousand, thirty four. Write that in standard
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61,442,669,034

Step-by-step explanation:

Standard form will always be in number form.

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3 years ago
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