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3 years ago

Given y=x^3-2x^2-15x; find the relative minimum and maximum.

Mathematics

1 answer:

Harman [31]3 years ago

3 0

The minimum is x=3

The maximum is x=-(5/3)

I hope it helps!

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I really need helppppp

JulijaS [17]

Answer:

The correct answer is C.

Step-by-step explanation:

In the equation of a circle, if the variable $x$ and $y$ are added or subtracted by any number before being squared, the entire circle with be translated in the opposite amount that was added or subtracted to the circle. For example, $(x-8)^2 + (y-8)^2$ shifts the center 8 to the right and up of the origin, $(x+1)^2+(y+4)^2$ shifts the center 1 to the left and 4 down of the origin. Since the circle represented in the graph is centered directly on the origin, that means the equation will have $x^2+y^2$ , which helps you eliminate choices A and C. For the equation of a circle, the radius is the value of the constant on the right side of the equal sign taken to its square root. Since the radius of this circle is 8, that means the constant at the right side of the circle would be 64 or $8^2$ , so the correct answer would be choice C: $x^2+y^2=8^2$ .

5 0

3 years ago

By what percent will a fraction decrease if its numerator is decreased by 50% and its denominator is decreased by 25%?

ioda

Answer:

The fraction will decrease $33.33\%$

Step-by-step explanation:

Let

x/y ----> the fraction

we know that

100%-50^=50%=50/100=0.50

100%-25%=75%=75/100=0.75

substitute

$\frac{x}{y}*\frac{0.50}{0.75} =\frac{2}{3}(\frac{x}{y})$

therefore

The percent that the fraction will decrease is equal to

$(1-\frac{2}{3})*100=33.33\%$

5 0

3 years ago

Given f(x)=5x^3 and g(x)=4x <br> find (f+g)(x)

nirvana33 [79]

Answer:

Find XY. Find XZ. Find angle WVX. Find angle XYV.

Step-by-step explanation: Find XY. Find XZ. Find angle WVX. Find angle XYV= 89

find (f+g)(x)

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6 0

3 years ago

Which expressions are equivalent to g+h+ (j+k)? Check all that apply.

Vsevolod [243]

According to the associative property of equality: (a + b) + c = a + (b + c) we can see that the parenthesis do not mean anything when we are only doing addition.

So answers 1. and 3. are correct.

<em>Thanks Associative Property!</em>

6 0

3 years ago

Read 2 more answers

For which equation would x = 3 be a solution?

frutty [35]

1. b , 2. A

this has toooo have 20 or more letters soooo i’m doing thissssss hiiiii

7 0

3 years ago