3 years ago

Can anyone help me with #7?

1 answer:

6 0

4x - 36 + 45 - 5x= 11.......-1x -9=11 then you add 9 to the other side i think..-x=20 but to make x positive x=-20..i think

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dem82 [27]

Answer: it’s a

Step-by-step explanation:

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3 years ago

Dmitriy789 [7]

Answer:

-5

Step-by-step explanation:

(-44) + (-10) + 49

=> 49 - 44 - 10

=> 49 - 54

=> -5

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3 years ago

netineya [11]

Answer: x=8

Step-by-step explanation:

the sum of the interior angles of a quadrilateral is 360 (number of sides-2 * 180)

$14x-7+11x-2+93+76= 360\\25x + 160=360\\25x= 200\\x=8$

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kumpel [21]

The standard deviation is the square root of the variance

so if the variance is 256, then the standard deviation is : sqrt 256 = 16 <==

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3 years ago

sattari [20]

Answer:

50x20=1000+500= 1500

50x50=2500+500=3000

Step-by-step explanation:

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2 years ago