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3 years ago

What is DE ? Please write answer as a decimal

Mathematics

1 answer:

katrin2010 [14]3 years ago

7 0

Answer:

6,3

Step-by-step explanation:

DE is the midpoint of AC, so take half of 12,6, which is 6,3.

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5 (3x+4)-2x=7x-3 (-2x+11) help

VMariaS [17]

Step one: multiply and divide in order. Step two: add and subtract like terms. Step three: get X alone on one side (what you do to one side you have To do to the other side) Step four: simplify and solve :)

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3 years ago

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In a factory, a manager tests 250 products and finds defects in 7 of them. How many defects are likely going to be in a 10,000 u

Natalka [10]

Answer:

280

Step-by-step explanation:

first make a proportion. 7 over 250= x over 10,000. cross multiply to get 250x=70,000. 70,000 divided by 250 which gets you 280.

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3 years ago

Help me with this question

Alona [7]

Answer:

Step-by-step explanation:

The opposite of 6 IS -6

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2 years ago

3 / m + 4 - 4 / m = 6 (i) Show that this equation can be written as 6m^2 + 25m+16= 0

Evgen [1.6K]

Answer:

Proved Below

Step-by-step explanation:

$\sf \frac{3}{m+4} - \frac{4}{m} = 6\\LCM = m(m+4)\\Multiplying \ both \ sides \ by\ m(m+4)\\3m - 4(m+4) = 6m(m+4)\\3m-4m-16 = 6m^2+24m\\-m-16 = 6m^2+24m\\Adding\ m\ to\ both\ sides\\-16 = 6m^2+24m+m\\-16 = 6m^2+25m\\Adding \ 16 \ to \ both \ sides\\0 = 6m^2+25m+16\\OR\\6m^2+25m+16 = 0$

Hence, Proved that $\sf \frac{3}{m+4} - \frac{4}{m} = 6$ is equivalent to $\sf 6m^2+25m+16 = 0$ .

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3 years ago

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Which of the following graphs represents the solution set for 7(4x – 1 ) + 6x > –279? PLEASE HELP

Luda [366]

First, solve the inequality:
$7(4x - 1 ) + 6x \ \textgreater \ -279\\
28x-7+6x\ \textgreater \ -279\\
34x\ \textgreater \ -272\\
x\ \textgreater \ -8$
Since x is <u>greater than</u> -8, you have the arrow point up the graph towards the positive side starting at -8.
Since it's greater than but not equal to -8, the circle is open.

Thus your graph is D.

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3 years ago