Which function is a quadratic function? u(x) = –x + 3x2 – 8 v(x) = 2x2 + 8x3 + 9x y(x) = x2 + 3x5 + 4 z(x) = 7x2 + 2x3 – 3

Answers

Answer 1

Answer:

u(x) = –x + 3x2 – 8

Step-by-step explanation:

The functions are;

u(x) = –x + 3x2 – 8

v(x) = 2x2 + 8x3 + 9x

y(x) = x2 + 3x5 + 4

z(x) = 7x2 + 2x3 – 3

A quadratic function is a function that has the form  f(x) = ax2 + bx + c where a, band c are numbers with a not equal to zero. The maximum degree must be 2.

Among all the options, the one that matches the form is;

u(x) = –x + 3x2 – 8

Answer 2

Answer:

u(x)=-x+3x2-8

Step-by-step explanation:

just did the test edg 2021


Related Questions

A weather researcher compared Dublin, Ireland, to Madrid, Spain. She found
data about their average monthly temperatures.
Dublin Madrid
Mean:
56.1°F 68.0°F
Mean average deviation: 6.4°F
12.1°F
Based on these data, which statement is true?
O A. On average, Dublin has a higher monthly temperature. However,
Madrid's monthly temperatures vary more.
O B. On average, Madrid has a higher monthly temperature. However,
Dublin's monthly temperatures vary more.
c. On average, Dublin has a higher monthly temperature. Its monthly
temperatures also vary more.
D. On average, Madrid has a higher monthly temperature. Its monthly
temperatures also vary more.

Answers

Answer:

Step-by-step explanation:

D

On average, Madrid has a higher monthly temperature. Its monthly

temperatures also vary more. The correct option is D.

What is mean?

Mean is defined as the ratio of the sum of the number of the data sets to the total number of the data.

The average distance between each data point and the mean is known as the mean absolute deviation of a dataset. It offers us a sense of how variable a dataset is.

It is given that weather researchers compared Dublin, Ireland, to Madrid, Spain. She found data about their average monthly temperatures.

Mean:  Dublin      Madrid

            56.1°F      68.0°F

Mean average deviation:

Dublin      Madrid

6.4°F         12.1°F

From the given table it is observed that the mean temperature of Madrid is higher than the mean temperature of Dublin.

Similarly, the mean average deviation for Madrid is higher than the mean average deviation of Dublin.

Therefore, the correct option is D.

To know more about mean follow

https://brainly.com/question/968894

#SPJ5

Pls help I think I got the wrong answer plsss!!


Will mark BRAINLIST if correct

Answers

Answer:

I think it is the first option.

Step-by-step explanation:

I don't really know, I just hope this helps

I am so sorry if I am wrong.

May someone please help me?

Answers

Answer:

the first one is 21,24, i think i dont know though

Step-by-step explanation:

Answer:

-86 for number 2, and -22 for number 3

Step-by-step explanation:

Help Plz
Will mark brainliest

Answers

Answer: 20.8ft

Step-by-step explanation:

Answer:

26/8 = 3.25

10 x 3.25 = 32.5

The answer is 32.5 ft

Justine is planting flowers in a line that is 1/2 of a yard long. She is going to plant 6 flowers. How far apart will each flower be?

Answers

Answer:

3 inches apart

Step-by-step explanation:

1/2 yard is 1ft. 6in. in decimal that is 1.5 ft

1.5 ÷6 = 0.25ft

0.25ft is 3 inches so the answer is three inches apart

Please solve all and number them too

Answers

Answer:

met is het yitr toyourt

Step-by-step explanation:

a rectengular plot of land measures 120 feet by 96 feet. Which dimeansions could not represent the plot on a scale drawing

Answers

Divide 120 / 96 = 20

20 inches by 16 inches

Answer:

20 by 16 <3

Step-by-step explanation:

What is the slope of the line below asap plzzzzzzzzzzzzzzzzzzzzz quick

Answers

Answer:

w of king akinf arro

Step-by-step explanation:

Remember to do run (x) then jump (y).


This is where you find two parts of the line that hit a corner and find the x and y for them.


The question already tells us this. Remember that the x always goes first and that if the line is going down (left to right), the slope is a negative.


Answer: -2/3


Answer:

Which choice shows the best estimate of the product 0.52 x 695?

Answers

Answer:

350

Step-by-step explanation:

.52 is about .5, and 695 is about 700.

and 700 * .5 is 350

HOPE THIS HELPS!

brainliest????

Find the value of x.

Help ASAP will give brainliest

Answers

Answer:

7

Step-by-step explanation:

5 x 7=35

55+35=90

Answer:

Option B.

Step-by-step explanation:

As the general angle is 90°, subtract the given angle (55°) from the general angle (90°).

90° ➖ 55°= 35.

Then, divide it by the coefficient of x (the unknown).

35 ➗ 5= 7

Therefore, the answer is 7.

PLEASE HELP I keep trying to figure it out

Answers

Answer:

6

Step-by-step explanation:

The answer is 6

Yyyyyyyy

Can someone pleaseeee help and if you’re correct I’ll give u brainlist!

Answers

Answer:

yes because 40/32 = 25/20

Step-by-step explanation:

For which polygon is the sum of the interior angles equal to 540

Answers

Answer:

5

Step-by-step explanation:

divide 540 by 180 = 3

3 +2 = number of sides = 5

Answer:

A

Step-by-step explanation:

Kieran picks a bead out of a bag without looking.He records the colour and replaces the bead.Kieran does this 50 times.He picks out a red bead 15 times. Estimate the probability of picking a red bead.

Answers

Answer: 3/10

Step-by-step explanation:

From the question, we are informed that Kieran picks a bead out of a bag without looking and that he records the colour and replaces the bead.

He does this 50 times and he picks out a red bead 15 times. The probability of picking a red bead will be the number of times a red bead was picked divided by the number of title times a bead was picked. This will be:

= 15/50

= 3/10

A parallelogram is being painted on the wall of a playroom. The parallelogram measures 7.3 meters in length and has a height of 5 meters. How many square meters of paint are needed?

Answers

Answer: 36.5 m²

Step-by-step explanation:

Whenever a unit is square, it means that it is measuring Area. Square meters are therefore used to denote the area of a shape.

This question is therefore asking for the area of the Parallelogram which is calculated by the formula:

= Length * Width

= 7.3 * 5

= 36.5 m²

Find the distance between the points 7,-10 and -5,6

Answers

the distance between the points is 20

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Answers

Answer:

girl how come you didn't come on Friday are you coming today???

Step-by-step explanation:

the pencil plant can make 7 pencils every 3 minutes. If the plant continues to produce pencils at this rate. How many pencils will produce in 3 1/2 hours​

Answers

Answer:

91.3043478 is  the answer

Please guys please I need help ASAP, this is easy! (Giving brainliest)

Answers

A. x= 15 it might be it im not sure i put in a calculater

Answer:

Step-by-step explanation:

a 7x-3=6x+12

x=15

b 2w+4=w-3

w=-7

c2(3p-5)=4(p+1)

6p-10=4p+4

2p=14

p=7

d 8-2(5m+3)-4m=3(7-2m)+13

-14m+2=34-6m

-32=8m

m=-4

Baby Kelsey wants to arrange 5 blocks in a row. How many different arrangements can she make?

Answers

Answer:

5

Step-by-step explanation:

5 steps

Answer:

t answer is 2

Which is the graph of the linear inequality y < 3x + 1? On a coordinate plane, a solid straight line has a positive slope and goes through (negative 1, negative 2) and (0, 1). Everything to the left of the line is shaded. On a coordinate plane, a solid straight line has a positive slope and goes through (negative 1, negative 2) and (0, 1). Everything to the right of the line is shaded. On a coordinate plane, a dashed straight line has a positive slope and goes through (negative 1, negative 2) and (0, 1). Everything to the left of the line is shaded. On a coordinate plane, a dashed straight line has a positive slope and goes through (negative 1, negative 2) and (0, 1). Everything to the right of the line is shaded.

Answers

For this case we have the following inequality: y < 3x + 1 < br/ >

What we must do is to evaluate a point of the Cartesian plane and verify if it is in the shaded region.

The shaded region represents the solution of the system of equations.

For the point (0, 0) we have:

0 < 3(0) + 1 < br / >

0 < 0 + 1 < br / >

0 < 1 < br / >

Therefore, the point (0, 0) is in the shaded region because it satisfies the inequality.

Then, the points that are on the line, are not part of the solution because the sign is of less strict.

Hope I helped ~~Laurel

Answer:

it is D!!!!!!!!!!! trust me, its right on edge:))))))

Step-by-step explanation:

Please. Someone help me

4. The sequence of calculation
a) 3+ 4=7
b) 7 * 36 = 252
c) 252 - 5 = 247
can be replaced by
(3+4) 36-5-247.
By proceeding as above, express each
sequence of operations by one equality:
a) 3 + 8 = 11 : 11* 10 = 110
b) 3X 6 = 18 : 18x 40 = 720
c) 4x 80 = 320 : 320 - 12 = 308 :
308 + 34 = 342
d) 5x 70 = 350 ; 40 + 12 = 52 ;
350 - 52 = 298​

Answers

............ Could you tell me the name of your maths book?

Solve the following equation and show all steps : 2x-6=5x+3

Answers

Answer:-

[tex]\pink{\bigstar}[/tex] [tex]\large\leadsto\boxed{\tt\purple{x = -3}}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

• Given:-

[tex]\sf 2x - 6 = 5x + 3[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

• Solution:-

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf 2x - 6 = 5x + 3[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf 2x - 5x - 6 = 3[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf - 3x = 3 + 6[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf - 3x = 9[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf x = \dfrac{9}{-3}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

[tex]\large{\bold\red{x = -3}}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Therefore, the value if x is -3.

Answer:

[tex]2x - 6 = 5x + 3 \\ x \: terms \: togather \\ 2x - 5x = 3 + 6 \\ - 3x = 9 \\ - x = \frac{9}{3} \\ - x = 3 \\ x = - 3 \\ thank \: you[/tex]

dawn had 1/5 gallon of juice to divide evenly between 2 friends.How much juice should each friend receive?

Answers

Answer:

7.5 if 1/5 is 15. if not, its 0.6

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

you have to break the fraction into 1/3 so the 2 friends can evenly get that

if its wrong look at someone else

Which line is parallel to the line y = 5/2x - 9

Answers

Answer:uhh you didn’t post the lines

Step-by-step explanation:

if it’s parallel, they have the same slope

simplify 1/4(12x-8)-(5x-1)

Answers

Answer:

b

Step-by-step explanation:

It took Jess 1 /13 minutes to print her 7 page book report. How long does it take for her printer to print a single page?

Answers

Answer:0.01098 minutes

Step-by-step explanation:

To Print 7 pages book report, Jess took = 1/13 minutes

to  print a single page = she will take ??

Solving

7 pages book require = 1/ 13minutes

1 Page = (1 x 1/13)/ 7=0.01098 minutes

y=-2/3x+3 I'm super stuck

Answers

Answer:

x=0  y=3

Step-by-step explanation:

Lori is running in a marathon, which is 26.2 miles long. So far, she has run one-tenth of the marathon. How far has Lori run

Answers

Answer:

lori has run 2.62 miles

Step-by-step explanation:

Do 26.2/10

alex practice playing the piano for two and a half hours each wee if alex practice for a total of 35 hours how long did he practice

Answers

Answer:

what is a wee?

Step-by-step explanation:

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