Why can79 be between 60and 100

Mathematics

1 answer:

Dvinal [7]4 years ago

3 0

Because it is greater than 60 but it is also less than 100

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Determine the multiplicity of the roots of the function k(x) = x(x + 2)3(x + 4)2(x − 5)4. 0, -2, -4, 5

Sergeu [11.5K]

Answer:

The polynomial function $k(x)=x(x+2)^3(x+4)^2(x-5)^4$

To determine the multiplicity of 0, -2, -4, 5.

The multiplicity of a root is the number of times the root appears.

First find the root of the equation, set the function equals to zero.

$x(x+2)^3(x+4)^2(x-5)^4=0$

therefore, the root of this function are, x=0,-2, -4, 5

To find the multiplicity of the roots:

A factor of x would have a root at x=0 with multiplicity of 1

similarly, x=-2 with multiplicity of 3

x=-4 with multiplicity of 2

x=5 with multiplicity of 4.

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3 years ago

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anita has two sisters and three brothers. the mean of all their ages is 6 years. what will their mean age be 10 years from now?t

pogonyaev

Answer:
Now: 6 yr mean age
in 10 yrs? 16 yr mean age
in 20 yrs? 26 yr mean age

Why? Because regardless of the relationship between each sibling's age, your always adding the 10yrs to each individual, which you are then dividing out to determine the mean age. See proof below:

Including anita, there are 6 people. We'll define each age as an unknown variable. Assume we know nothing about the relationships between their ages

for example sake
anita's age = a
sister 1's age = b
sister 2's age = c
brother 1's age = d
brother 2's age = e
brother 3's age = f

Now:
mean age = (a + b + c + d + e + f)/(6 people) = 6 yrs

in 10 yrs:
mean age = ((a+10) + (b+10) + (c+10) + (d+10) + (e+10) + (f+10))/(6 people)
mean age = (a + b + c + d + e + f + 60)/(6 people)
mean age = (a + b + c + d + e + f)/(6 people) + (60)/(6 people)
mean age = (a + b + c + d + e + f)/(6 people) + 10

Notice the first term is the same expression of the mean age for "Now"
Thus, in 10 yrs:
mean age = 6 + 10 = 16 yrs

The same principle applies for "x" yrs from now, as long as we know what the mean age is "Now"

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FromTheMoon [43]

A square has 4 sides, so 128 in. Squared divided by the 4 sides, would then equal 32 in. Squared for the approximate side length of a square game board

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0 because the -x cancels out the ones negative and 1 x 2 is 2. And 2-2 is 0

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Stolb23 [73]

Answer:

Step-by-step explanation:

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