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Softa [21]
3 years ago
12

The solution set for -p2 − 11p = 0 is { }. (Separate the solutions with a comma.)

Mathematics
1 answer:
ikadub [295]3 years ago
3 0

Answer:

0,-11

Step-by-step explanation:

-p^2 − 11p = 0

Factor out -p

-p( p+11) =0

Using the zero product property

-p =0    p+11 =0

p =0      p = -11

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Supposed Blue spruce was included in the list and the mean decreased to 165 what is the height of the Blue spruce?
postnew [5]
The height of the blue spruce was 45.

We find the mean by adding all of the data points and dividing by the number of data points.  We will add the unknown value x and change the number we're dividing by to 7:

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Multiply both sides by 7:
1110 + x = 1155

Subtract 1110 from both sides:
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3 years ago
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Write ordinates of following points:<br> ( 3 , 4 ) &amp; ( 5 , -3 )
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4 0
3 years ago
I need help trying to figure this out I think I have and answer but I want to make sure.
yKpoI14uk [10]

Answer:

34

Step-by-step explanation:

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mean = \frac{frequency(midpoint)}{frequency}

let x be the missing frequency, then

Total frequency × midpoint

= (16 × 2) + 7x + (20 × 12) + (10 × 17) = 32 + 7x + 240 + 170 = 442 + 7x

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442 - 1.5x = 391 ( subtract 442 from both sides )

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