Mathematics High School

Choose the expression that represents a quadratic expression.
O 6x4 - 5x3 + 3x2 -7x - 8
) 5x3 + 3x2 -7x - 8
O 2x2 + 3x - 1
. 3x - 1

Answers

Answer 1

Answer:

3) 2[tex]x^{2}[/tex] + 3x - 1

Step-by-step explanation:

A quadratic expression is an expression involving a squared term

It can be written as y = a[tex]x^{2}[/tex] + bx + c, where a ≠ 0

// note that here b and c can be equal to 0

1) 6[tex]x^{4}[/tex] - 5[tex]x^{3}[/tex]  + 3[tex]x^{2}[/tex]  - 7x - 8 is simply incorrect because you can't write in the previously mentioned form. It is a quartic function, since the unknown variable x in forth degree. It can be written as y = a[tex]x^{4}[/tex] +b[tex]x^{3}[/tex] +c[tex]x^{2}[/tex] + dx + e, where a before [tex]x^{4}[/tex] ≠ 0

2) 5[tex]x^{3}[/tex]  + 3[tex]x^{2}[/tex]  - 7x - 8 is simply incorrect because you can't write in the previously mentioned form. It is a cubic function, since the unknown variable x in third degree.

3) 2[tex]x^{2}[/tex] + 3x - 1 is correct

4) 3x - 1 is incorrect because there is no squared term. You could also say that here a = 0 and write it as y = 0 * [tex]x^{2}[/tex]  + 3x - 1. It is also called a linear function because if you'd draw a graph, it would be a line

Answer 2

Answer:

2x2 + 3x - 1

Step-by-step explanation:

Related Questions

What's nine plus ten? Is it 21 or 19

Answers

Answer:

19 duh

Step-by-step explanation:

HELP ASAP!


Jesse serve 13 pints of orange juice at her party. How many quarts of orange is that she serve? Jesse served ____ quarts and ____ pints.

Answers

13 pints 5 quarts ihow to do this but I tried );

Lorenzo ate 25 of his bag of almonds. His 4 friends ate equal shares of the remaining bag of almonds. Which expression represents the almonds that each friend ate?

Answers

Answer:

(x - 25) / 4

Step-by-step explanation:

In this scenario, we have one unknown variable which is the total of the bag of almonds, therefore we can represent this with the variable x. Since Lorenzo ate 25 of this bag we would need to subtract this from the total of the bag. Then we need to divide the remainder by 4 since each of his friends ate the rest in equal parts. This would leave us with the following expression ...

(x - 25) / 4

1. Marie took out a loan for $250 for a Nintendo Switch. She plans to pay the 1 point
loan off in 18 months. At an annual interest rate of 7%, how much will Marie
have paid altogether for the Nintendo Switch? *

Answers

Answer: $276.25

Step-by-step explanation:

250 times .07 = 17.5

17.5 times 1.5 = 26.25

250 + 26.25 = 276.25

Help me please answer thanks

Answers

so the line is gonna cross on 4 on the y-intercept because in the equation that’s the y-intercept and 2 is the slope. the slope is moving up the graph by 2 because 2 is the slope. I hope this makes sense i don’t know how to simplify it more than this sorry

To
357 is what percent of 420?

Answers

Answer:

85

Percentage Calculator: 357 is what percent of 420? = 85.

Answer:

85%

Step-by-step explanation:

357/420 reduces to 17/20 if you divide the numerator and denominator by 21 which is equivalent to .85

there are 54 tickets to be shared and divided to section Z and section Y in the ratio 4:5. How many tickets will section Y received?
A.20
B.24
C.30
D.34​

Answers

Answer:

C.30

Step-by-step explanation:

total ratio=9

y=[tex]\frac{5}{9}[/tex]×54=30

Peggy rode her bike 25 miles in 2 hours. At this rate, how far will she ride in 3 hours?

Answers

37.5 miles

divide 25 by 2, that gives you 12.5
multiply 12.5 by 3 to get 37.5

Write an expression equivalent to 12+5t−4+15t+1

Answers

Answer:

20t + 9

Step-by-step explanation:

12+5t−4+15t+1

20t + 9

(Simplified version)

Answer:

The answer is 20t+9

Step-by-step explanation:

Is 3(x+2)-10=5x-6 one souliton

Answers

Answer:

one solution it is x=1

Step-by-step explanation:

i can type in the steps if you want

Answer:

X=1

Step-by-step explanation:

In ΔDEF, the measure of ∠F=90°, DE = 88 feet, and EF = 39 feet. Find the measure of ∠E to the nearest tenth of a degree.

Answers

- 47 I think this is the answer

Solve for x. −12x+13>35 Drag and drop a number or symbol into each box to correctly complete the solution.

Answers

Answer:

x < -11/6.

Step-by-step explanation:

−12x + 13 > 35

-12x > 35 - 13

-12x > 22

Divide both sides by -12 and invert the inequality sign:

x < -22/12

x < -11/6.

Identity the slope and y-intercept
(-2,-3) (0,5)


Answers

Answer:

slope (m) = 4

y intercept is -3 and 5

A system of equations is shown below what is the x- value of the system of equations y= -4..... 2x-3y=8

Answers

Answer:

x= -2

Step-by-step explanation:

Which one is it???????

Answers

X-4 I hope this is right

whats the slope of the line help pls

Answers

Answer:

the slope is -1/6

Step-by-step explanation:

I hope it helps

Consider the geometric sequence:
4, 8, 16, 32, ...
If n is an integer, which of these functions generate the sequence?
Choose all answers that apply:

a(n) = 4(2)” for n > 0
b(n) = 2(2)" for n > 1
c(n) = 4n-1 for n > 2
d(n) = 4n-2 for n > 3

Answers

Answer: a and b

Step-by-step explanation: plug in

The function for the geometric series is Tₙ = 4 (2)ⁿ⁻¹, the correct option is A.

What is a Geometric Series?

A sequence of numbers such that the consecutive term is increasing or decreasing by a fixed ratio is called a geometric series.

The geometric series is

4,8,16,32,........

The function which denotes this sequence is given by

The standard equation for geometric series is

Tₙ = a₁ rⁿ⁻¹

r = 2

a₁ = 4

Tₙ = 4 (2)ⁿ⁻¹

To know more about Geometric Series

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450 mistakes in 9 tests. How many mistakes per test?

Answers

Answer:

50

Step-by-step explanation:

all you have to do is Divide 9 ÷ 450 the answer is 50.

50 mistake per tests.

Answer:

50 mistakes per test. 450 mistakes divided by 9 tests =50

solve for x 1/5(x-4)=-2

Answers

the answer is:

x = -6

In the figure below, m_1=(x-9° and m2 =6xº.
Find the angle measures.
Help!!!!

Answers

Answer:

(x-9)°+6x=180°[by linear pair]

7x-9=180°

7x=180°+9

7x=189°

x=189/7

x=27

(x-9)°=27-9=18°

(6x)°=6×27=162°

The angle measures are 18 degrees and 162 degrees.

What is Angle?

An angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle.

In the given figure ∠1=x-9 and ∠2=6x

The sum of ∠1 and ∠2 is 180 degrees by linear pair.

∠1 +∠2 =180

x-9+6x=180

Add the x variable terms

5x-9=180

Add 9 on both sides

5x=189

Divide both sides by 5

x=27

Now substitute value of x in angle 1 and angle 2.

∠1=x-9=27-9=18 degrees

∠2=6x=6(27)=162 degrees.

Hence, the angle measures are 18 degrees and 162 degrees.

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Will mark brainliest

Answers

Answer:

Step-by-step explanation:

1a. 2x - 4y = 2

   -x  + 4y = 3

x = 5

-5 + 4y = 3

4y = 8

y = 2

(5, 2)

1b. 2x + 3y=1

     -2x + 2y = -6

      5y = -5

       y = -1

     2x - 3 = 1

    2x = 4

    x = 2

   (2, -1)

2a.  x + 2y = 4

       2x - 5y = -1

     -2x - 4y = -8

      2x -  5y = -1

    -9y = -9

      y= 1

2x - 5 = -1

 2x = 4

  x = 2

(2, 1)

2b. 4x + 2y = 4

       x - 2y = -5

       5x = -1

        x= -1/5

    -1/5 - 2y = -5

    -2y = -4 4/5

      y= 12/5

(-1/5, 12/5)

3. 5x + 3y = 85

  11x + 5y = 163

25x + 15y = 425

-33x - 15y = -489

 -8x = -64

x = 8 regular

5(8) + 3y = 85

40 + 3y = 85

3y = 45

y = 15 mini bouquets    

(8 regular, 15 mini bouquets)

4a. 6x + 12y = -6

     18x - 12y = - 162

24x = -168

x = -7

3(-7) - 2y = -27

-21 - 2y = -27

-2y = -6

y= 3

(-7, 3)

4b. 3(6 -y) - 2y = 38

     18 - 3y - 2y = 38

     18 - 5y = 38

    -5y = 20

    y = -4

x = 6 + 4

x = 10

(10, -4)

express as a fraction in simplest form 4 to 36

Answers

Answer:

Step-by-step explanation:

4/36/2/2

2/18/2/2

1/9

Which statement is true regarding the function above?
A) There is a vertical shift 6 spaces up
B) there is a horizontal shift 6 spaces to the right
C) there is a vertical shift 6 spaces down
D) there is a horizontal shift 6 spaces to the left

Answers

Answer:

B.there is a horizontal shift 6 spaces to the right

Solve the system by substitution.
y = 5x
y = 9x + 4

Answers

Answer:

(-1, -5)

Step-by-step explanation:

[tex]\left \{ {{y=5x} \atop {y=9x+4}} \right.[/tex]

1. We must calculate x, for that we must substitute y, so we have:

5x=9x+4

2. Now we solve the equation.

5x-9x=4

-4x=4

x=-1

3. Now we must calculate y

y=5x

y=5(-1)

y=-5

And the answer is (-1, -5)

. Predict how many tiles Figure 100 will
have? The rule is y=6x+5

Answers

In figure 100 there will be 605 tiles

The ratio of the measure of the three angles of a triangle is 3:4:8. Find the mesure of the large angle

Answers

Answer:

96°

Step-by-step explanation:

Ratio of angles :

3 : 4 : 8

Sum of angles in a triangle = 180°

The value of the largest angle = angle with the largest ratio

This is the value of the angle with ratio 8

Sum of ratio : (3 + 4 + 8) = 15

Hence,

(8 / 15) * 180°

(8 * 180°) / 15

1440 / 15

= 96°

what's the total cost of a 280 dollar television if is the sales tax is 10%

Answers

Answer:

$308

Step-by-step explanation:

Convert the 10% to a decimal by dividing by 100 (= 0.10). Then multiply that by 280.

280 x 0.10 = $28 tax

Add the tax to the cost & you have
280 + 28 = $308.


SOMEONE PLEASE HELP ME !

Answers

y=mx+b
m=20 (slope)
b=10 (y-int)
equation= y=20x+10

16 ÷ 22 + (6 x 2) - 8

Answers

I did the PEMDAS method (P= parentheses, E= exponents, M= multiplication, D = Division, A= addition, S = subtraction.)

First I did what’s inside the parentheses, (6x2) and got 12.

Then I divided 16 by 22 and received 0.72.

I added 0.72 with 12 and the result was 12.72.

Last step was to subtract 12.72 - 8 and that equals 4.72
16 ÷ 22 + (6 x 2) - 8 = 4.72

What is the classification of the angle shown??
A. acute
B. right
C. straight
D. obtuse

Answers

Answer:

Acute

Step-by-step explanation:

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