All categories

3 years ago

Choose the expression that represents a quadratic expression.

Mathematics

2 answers:

vesna_86 [32]3 years ago

4 0

Answer:C. 2x2 + 3x − 1 is quadratic

Step-by-step explanation:

Quadratic expressions are polynomial expressions in which the highest power of the variable is 2.

Looking at option A, the highest power of the variable in the polynomial is 4. Therefore, it is not a quadratic expression.

Looking at option B, the highest power of the variable in the polynomial is 3. Therefore, it is not a quadratic expression.

Looking at option C, the highest power of the variable in the polynomial is 2. Therefore, it is a quadratic expression.

Looking at option D, the highest power of the variable in the polynomial is 1. Therefore, it is not a quadratic expression.

frez [133]3 years ago

4 0

Answer:

the answer is C.

Step-by-step explanation:

You might be interested in

Beth is half as old as Meg. Enter an algebraic expression based on this situation.

Tanya [424]

Answer:

b = 1/2m

Step-by-step explanation:

Let:

b = beth's age
m = meg's age

The prompt tells us that Beth is half as old as Meg. Therefore, mathematically, b = 1/2m.

8 0

2 years ago

Read 2 more answers

If f(x) = 3x²-4 and g(x) = x+2, find (f - g)(x).

Sergeeva-Olga [200]

Answer:B

Step-by-step explanation:

5 0

2 years ago

Plsssss helplll i’ll give 10 points loll

umka2103 [35]

Answer:

(- 3, 5 ) & (-2,7)

Step-by-step explanation:

Under a counterclockwise rotation about the origin of 90°

a point (x, y ) → (- y, x ) , thus

(5, 3 ) → (- 3, 5 )

Under a counterclockwise rotation about the origin of 90.

a point (x, y ) → (- y, x ) , thus

(7, -2 ) → (-2, 7)

7 0

3 years ago

HELP PLEASE!! Which of the following best describes the graph below? A. it us a one-to-one function B. it us a function but it i

masha68 [24]

The correct statement regarding the function $y = \sqrt{x + 2}$ is given by:

A. it us a one-to-one function.

<h3>What is the missing information?</h3>

This problem is incomplete, but researching it on the internet, the function used is $y = \sqrt{x + 2}$ .

<h3>Is it a function?</h3>

For $y = \sqrt{x + 2}$ , each value of x is associated with only one value of y, that is, the graph has <u>no vertically aligned points</u>, hence it is a function.

<h3>Is the function one-to-one?</h3>

Each value of y is also associated with only one value of x, that is, the graph has <u>no horizontally aligned points</u>, hence it is a one-to-one function, and the correct statement is given by:

A. it us a one-to-one function.

More can be learned about functions at brainly.com/question/24808124

#SPJ1

8 0

2 years ago

For 99 pts and Brainliest The vertices of kite DEFG are (5, 5), (8, 2), (5, -4), and (2, 2), respectively. Prove that the diagon

Brums [2.3K]

Answer:

See below

Step-by-step explanation:

<em>Vector argument</em>

Vector DF is (5, -4) - (5, 5) = (0, -9).

Vector EG is (2, 2) - (8, 2) = (-6, 0).

The dot-product of these two vector is (0, -9)•(-6, 0) = 0·(-6) + (-9)·0 = 0.

When the dot-product of two vectors is zero, those vectors are at right-angles to each other. Therefore diagaonal DF ⊥ diagonal EG.

_____

<em>Alternate argument</em>

The x-coordinates of points D and F are the same, so diagonal DF is a vertical line. The y-coordinates of points E and G are the same, so diagonal EG is a horizontal line. Vertical lines are perpendicular to horizontal lines, so DF ⊥ EG.

3 0

3 years ago