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2 years ago

Write a polynomial function of least degree with rational coefficients so that P(x)=0 has the given roots.

Mathematics

1 answer:

Fittoniya [83]2 years ago

3 0

Answer:

If P(x) has the roots -11 and 6, then its multipliers can be written as

Step-by-step explanation:

P(x)=(x+11)(x-6)

P(x)=x2-6x+11x-66

P(x) = x2+5x-66

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What is the image of (6,-2) under the translation (x,y) (x-5,y-8)

german

The new point would then be at (1, -10)

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3 years ago

A rancher wants to fence in an area of 1500000 square feet in a rectangular field and then divide it in half with a fence down t

VLD [36.1K]

Answer:

6000 ft

Step-by-step explanation:

Let length of rectangular field=x

Breadth of rectangular field=y

Area of rectangular field= $1500000$ square ft

Area of rectangular field= $l\times b$

Area of rectangular field= $x\time y$

$1500000=xy$

$y=\frac{1500000}{x}$

Fencing used ,P(x)= $x+x+y+y+y=2x+3y$

Substitute the value of y

P(x)= $2x+3(\frac{1500000}{x})$

$P(x)=2x+\frac{4500000}{x}$

Differentiate w.r.t x

$P'(x)=2-\frac{4500000}{x^2}$

Using formula: $\frac{dx^n}{dx}=nx^{n-1}$

$P'(x)=0$

$2-\frac{4500000}{x^2}=0$

$\frac{4500000}{x^2}=2$

$x^2=\frac{4500000}{2}=2250000$

$x=\sqrt{2250000}=1500$

It is always positive because length is always positive.

Again differentiate w.r.t x

$P''(x)=\frac{9000000}{x^3}$

Substitute x=1500

$P''(1500)=\frac{9000000}{(1500)^3}>0$

Hence, fencing is minimum at x=1 500

Substitute x=1 500

$y=\frac{1500000}{1500}=1000$

Length of rectangular field=1500 ft

Breadth of rectangular field=1000 ft

Substitute the values

Shortest length of fence used= $2(1500)+3(1000)=6000 ft$

Hence, the shortest length of fence that the rancher can used=6000 ft

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4 years ago

Part A:

liubo4ka [24]

Answer:

A)20 apples

B)Can only make 2 pies

C)Yes I think Is very close like probably just a lil bit more sugur but I think yes

D)Ohh so he doesnt have enough sugur I knew he needed a lil bit more sugur lol

Step-by-step explanation:

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3 years ago

B. A number y minus 75.

mel-nik [20]

Step-by-step explanation:

y-75

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3 years ago

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While cooking soup, Marry used 5 7 of a shaker of salt and 3 5 of a shaker of pepper. How much more salt was used than pepper?

Ymorist [56]

There was 22 more shakers of salt than pepper

7 0

3 years ago

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