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tatiyna
2 years ago
12

Aidan drops a rock from a cliff after 4.0s, the rock is moving at 39.2m/s what is the acceleration of the rock

Mathematics
1 answer:
Cerrena [4.2K]2 years ago
3 0

Here,

time=4.0s

velocity=39.2m/s

Formula:

a=v/t

=39.2/4.0

=9.8 (ms-2)

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3 years ago
The sum of two polynomials is â€"yz2 â€" 3z2 â€" 4y 4. If one of the polynomials is y â€" 4yz2 â€" 3, what is the other polynomi
gtnhenbr [62]

The sum of polynomials involves adding the polynomials

The other polynomial is y^3 -y^2+ 4y - 1

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Sum = y^3 + 3y^2 + 4y - 4

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P = 4y^2 - 3

Represent the other polynomial with Q.

So, we have:

P +Q =Sum

Substitute the expressions for P and Sum

4y^2 - 3 +Q =y^3 + 3y^2 + 4y - 4

Make Q the subject

Q =y^3 + 3y^2 -4y^2+ 4y - 4 +3

Evaluate like terms

Q =y^3 -y^2+ 4y - 1

Hence, the other polynomial is y^3 -y^2+ 4y - 1

Read more about polynomials at:

brainly.com/question/1487158

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2 years ago
(x^2-2)^2-10(x^2-2)+21=0 find one value of x that is a solution to the equation
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Answer:

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Step-by-step explanation:

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3 years ago
Write a polynomial function, p(x) with degree 3 that has p(7)=0
MArishka [77]

Answer:

p (x) = x^{3} - 21x^{2}+ 147x - 343

is the required polynomial with degree 3 and p ( 7 ) = 0

Step-by-step explanation:

Given:

p ( 7 ) = 0

To Find:

p ( x ) = ?

Solution:

Given p ( 7 ) = 0 that means substituting 7 in the polynomial function will get the value of the polynomial as 0.

Therefore zero's of the polynomial is seven i.e 7

Degree : Highest raise to power in the polynomial is the degree of the polynomial

We have the identity,

(a -b)^{3} = a^{3}-3a^{2}b +3ab^{2} - b^{3}

Take a = x

        b = 7

Substitute in the identity we get

(x -7)^{3} = x^{3}-3x^{2}(7) +3x(7)^{2} - 7^{3}\\(x -7)^{3} = x^{3}-21x^{2} +147x - 343

Which is the required Polynomial function in degree 3 and if we substitute 7 in the polynomial function will get the value of the polynomial function zero.

p ( 7 ) = 7³ - 21×7² + 147×7 - 7³

p ( 7 ) = 0

p (x) = x^{3} - 21x^{2}+ 147x - 343

4 0
3 years ago
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