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3 years ago

Use these functions to answer this question.

Mathematics

1 answer:

Dmitry [639]3 years ago

4 0

Given:

The two functions are:

$P(x)=x^2-x-6$

$Q(x)=x-3$

To find:

The function $P(x)-Q(x)$ .

Solution:

We need to find the function $P(x)-Q(x)$ .

$P(x)-Q(x)=(x^2-x-6)-(x-3)$

$P(x)-Q(x)=x^2-x-6-x+3$

$P(x)-Q(x)=x^2+(-x-x)+(-6+3)$

$P(x)-Q(x)=x^2-2x-3$

Therefore, the correct option is C.

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Please help which of the following statements could be a function?

iragen [17]

Answer:

The first one height vs shoe size.

Step-by-step explanation:

Let's evaluate each choice

1) Generally, it is possible that the taller a person is, that his/her shoe size would generally get bigger also. Hence we can say that it is possible that there is a function correlation between height and shoe size.

2) hair length can be cut down short or left long regardless of the height of a person, so we cannot say for sure that hair length correlates with height. Hence this is probably not a function)

3) hair color has no bearing on a persons age. hence this is probably not a function.

4) student ID number doesn't depend on the name of the student. Hence this is probably not a function.

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2 years ago

Can someone solve this please

Radda [10]

She is incorrect because x^2 can still be factored.

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3 years ago

If you join the store membership, all items over $100 will have a flat rate restocking fee of $5. How much money will a member s

dexar [7]

$235, I believe. 240-5=235.

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3 0

3 years ago

What is the square root

shusha [124]

Answer:

Step-by-step explanation:

Trying to factor as a Difference of Squares :

1.1 Factoring: r2-96

Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)

Proof : (A+B) • (A-B) =

A2 - AB + BA - B2 =

A2 - AB + AB - B2 =

A2 - B2

Note : AB = BA is the commutative property of multiplication.

Note : - AB + AB equals zero and is therefore eliminated from the expression.

Check : 96 is not a square !!

Ruling : Binomial can not be factored as the difference of two perfect squares.

Equation at the end of step 1 :

r2 - 96 = 0

Step 2 :

Solving a Single Variable Equation :

2.1 Solve : r2-96 = 0

Add 96 to both sides of the equation :

r2 = 96

When two things are equal, their square roots are equal. Taking the square root of the two sides of the equation we get:

r = ± √ 96

Can √ 96 be simplified ?

Yes! The prime factorization of 96 is

2•2•2•2•2•3

To be able to remove something from under the radical, there have to be 2 instances of it (because we are taking a square i.e. second root).

√ 96 = √ 2•2•2•2•2•3 =2•2•√ 6 =

± 4 • √ 6

The equation has two real solutions

These solutions are r = 4 • ± √6 = ± 9.7980

Two solutions were found :

r = 4 • ± √6 = ± 9.7980

Processing ends successfully

4 0

3 years ago

Solve for X x+27 = -12 pls hurry pleaseeeee

Yuliya22 [10]

Answer:

x + 27 = - 12

x = - 39

Step-by-step explanation:

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3 years ago