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just olya [345]
2 years ago
13

F(x). = x3+2x2+9x+18 find all zeros and use synthetic division

Mathematics
1 answer:
prisoha [69]2 years ago
8 0
F(x)= (x-2) (x2-9) = (x-2)(x-3)(x+3)
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Given here are a set of sample data: 12.0, 18.3, 29.6, 14.3, and 27.8. the sample standard deviation for this data is equal to _
disa [49]
The answer is 7.9306

Using the formula in the attached:
Where: xi = sample value; μ = sample mean; n = sample size

1.) Calculate the mean first:
μ = 12.0 + 18.3 + 29.6 + 14.3 + 27.8 / 5
   = 102 / 5
μ = 20.4

2.) Using the mean, calculate (xi - μ)² for each value:
(12.0 - 20.4)² = 70.56
(18.3 - 20.4)² = 4.41
(29.6 - 20.4)² = 84.64
(14.3 - 20.4)² = 37.21
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3.) Sum the squared differences and divide by n - 1.
μ = 70.56 + 4.41 + 84.64 + 37.21 + 54.76
   = 251.58 / 5-1
μ = 62.895 (this is now called sample variance)

4.) Get the square root of the sample variance:
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3 0
3 years ago
Solve -5(-5m + 5) = -2m – 4
skad [1K]

Answer:

m=7/9

Step-by-step explanation:

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25m-25=-2m-4      

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m=7/9 or .777 (infinite)

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AveGali [126]

Step-by-step explanation:

HERE

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How to cross multiply 9/12 =x/100?
Ilia_Sergeevich [38]
The answer is 75. 1. You simplify which is 3/4
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