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2 years ago

Please help me with this question

Mathematics

1 answer:

natulia [17]2 years ago

4 0

what's up

Seek understand, to be understood!

To get the answer we need the formula or source.

The question in another way if 4cm=1.2km, what is the 10cm=--------

first, you have to use the crisscross.

4cm=1.2km

10cm= x it is variable

then, 4xx= 1.2kmx10cm

4x=12km

4x/4= 12/4

x=3km

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In the matrix shown, which element is A1,2?

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Answer:

B. 2

Step-by-step explanation:

a1,1=1

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a1,3=3

a2,1=4

a2,2=5

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a3,1=7

a3,2=8

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2 years ago

Jillian has three different bracelets (x y and z) to give to her friends as gifts In any order she prefers if the bracelet y is

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Answer:

Number of ways to chose bracelet = 2 ways

Step-by-step explanation:

Given:

Total number of bracelet = 3

Y is chosen first

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Number of ways to chose bracelet

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So,

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2 years ago

Write an equation for the cubic polynomial function whose graph has zeroes at 2, 3, and 5.

TiliK225 [7]

we know that

For a polynomial, if x=a is a zero of the function, then (x−a) is a factor of the function. The term multiplicity, refers to the number of times that its associated factor appears in the polynomial.

In this problem

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then

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$(x-2)\\ (x-3)\\ (x-5)$

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The answer is No

If a cubic polynomial function has three different zeroes

then

the multiplicity of each factor is one

For instance, the cubic polynomial function has the zeroes

$x=2\\ x=3\\ x=5$

each occurring once.

Part b) How can you find a function that has these roots?

To find the cubic polynomial function multiply the factors and equate to zero

$(x-2)*(x-3)*(x-5)=0\\ (x^{2} -3x-2x+6)*(x-5)=0\\ (x^{2} -5x+6)*(x-5)=0\\ x^{3} -5x^{2} -5x^{2} +25x+6x-30=0\\ x^{3}-10x^{2} +31x-30=0$

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the cubic polynomial function is equal to

$x^{3}-10x^{2} +31x-30=0$

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2 years ago

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VladimirAG [237]

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