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3 years ago

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A polynomial function has a root of -3 with multiplicity 2, a root of 0 with multiplicity 1, a root og 1 woth multiplicity 1 and

a root of 3 woth multiplicity 2 of the function has a possible leading coefficient and is of even degree which could be the graph of the function

1 answer:

damaskus [11]3 years ago

5 0

25 is the answer hurry hurry

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If x² + xy – 3y = 3, then at the point (2, 1), dy/dx

Scilla [17]

Answer:

A

Step-by-step explanation:

We have the equation:

$x^2+xy-3y=3$

Take the derivative of both sides with respect to x:

$\frac{d}{dx}[x^2+xy-3y]=\frac{d}{dx}[3]$

Implicitly differentiate:

$2x+y+x\frac{dy}{dx}-3\frac{dy}{dx}=0$

Solve for dy/dx:

$\frac{dy}{dx}(x-3)=-2x-y\\$

Divide:

$\frac{dy}{dx}=-\frac{2x+y}{x-3}$

To find dy/dx at (2, 1), substitute 2 for x and 1 for y. So:

$\frac{dy}{dx}_{(2, 1)}=-\frac{2(2)+1}{2-3}=-\frac{5}{-1}=5$

Hence, our answer is A.

4 0

3 years ago

Red and grey bricks were used to build a decorative wall. The number of red bricks and grey bricks was 5/2. There were 140 brick

ozzi

Answer:

100 red bricks

Step-by-step explanation:

Let's say red bricks is equal to 5x

Gray bricks is equal to 2x

We have an equation

2x + 5x = 140

= 7x = 140

Divide through by 7 to get the value of x

X = 140/7

X = 20

Red bricks = 5(x)

= 5(20)

= 100

Gray bricks = 2(x)

= 2(20)

= 40

Therefore in conclusion the number of red bricks is 100.

5 0

2 years ago

Simplify 22 – 5(2x + 4).

Georgia [21]

Answer:

-10x+2

Step-by-step explanation:

22-5(2x+4)

22-10x-20

2-10x

-10x+2

4 0

2 years ago

Read 2 more answers

What is the yintercept of f(x) =(1/2)^x<br> ?

Anestetic [448]

$\text{Find the y-intercept:}\\\\\text{To fidn the y-intercept, we would have to plug in 0 to x. Since the y-intercept}\\\text{exists whenever x is equal to 0}\\\\\text{Solve:}\\\\f(x)=(\frac{1}{2})^0\\\\\text{We know that whenever the exponent is 0, it equals to 1}\\\\f(x)=1\\\\\text{Therefore, this makes the y-intercept 1.}\\\\\text{Answer is stated as a point on the graph}\\\\\boxed{(0,1)}$

4 0

2 years ago

Which expression is equivalent to:

Paul [167]

B.) 10x-5 is equivalent to 6x – 5 + x + 3x

4 0

2 years ago