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Alja [10]
3 years ago
7

If (a^3+27)=(a+3)(a^2+ma+9) then m equals

Mathematics
1 answer:
Ronch [10]3 years ago
7 0

Answer:

m = - 3

Step-by-step explanation:

a³ + 27 ← is a sum of cubes and factors in general as

a³ + b³ = (a + b)(a² - ab + b²), thus

a³ + 27

= a³ + 3³

= (a + 3)(a² - 3a + 9)

comparing a² - 3a + 9 to a² + ma + 9, then

m = - 3

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What is the value of X that makes equation true? -5(2x - 3) + 4x = -3x + 6
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Step-by-step explanation:

6 0
3 years ago
If , n^-3 = 1/8 then n would be which of the following? -1/2 -2 2 1/2
lions [1.4K]

Answer:

2

Step-by-step explanation:

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3 years ago
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The infant mortality rate is defined as the number of infant deaths per 1,000 live births. This rate is often used as an indicato
Basile [38]

(a)

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The median is bigger than half the points.  First bar is 37%, next is 22%, so its about halfway in the second bar, median=15

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b

When the data is heavily skewed left like it is here, the median tends to be lower than the mean.  The 5% of the data from 80 to 120 averages around 100 so adds 5 to the mean, and 8% of the data from the 60 to 80 adds another 5.6, 15% of the data from 40 to 60 adds about 7.5, plus the rest, so the mean is gonna be way bigger than the median of around 15.

8 0
3 years ago
Which of the following equations describes the graph?
cluponka [151]

Answer:

Which cone has a volume of 24 7 cm?

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1

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4.5 cm

1

6.5 cm

B = 25.4 cm

1

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1

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Step-by-step explanation:

3 0
3 years ago
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