Mathematics High School

Choose the expression that represents a quadratic expression.
A.) 6x4 − 5x3 + 3x2 −7x − 8
B.) 5x3 + 3x2 −7x − 8
C.) 2x2 + 3x − 1
D.) 3x − 1

Answers

Answer 1

Answer:

C. 2x^2 + 3x - 1

is the answer

Related Questions

Plss I need this rnnn

Answers

Answer:

x= 65

Step-by-step explanation:

3x-15=180

add 15 both sides

3x= 195

divide by 3

x=65

the answer for x would be 65 (x=65

Help me out, math is irritating

Answers

Answer:

67958.93228

Step-by-step explanation:

Mr. K was able to spot quite a few window washers on the skyscrapers there. He asked them how long it took to wash windows on such a building. They said that each person could wash 50 windows in 1 hour.
(How long would it take the 3 workers to wash all 1000 windows on one of the skyscrapers?)

Answers

Answer:

6.7 hours

Step-by-step explanation:

If one can do 50 then three can do 150.

So 1000÷150=6.66666666666

Hope this helps

Hayden built a wooden sculpture with the dimensions
shown. Now he wants to paint it.
How much paint does he need?
64 in.2
96 in 2
8 in.
192 in.2
256 in.2
8 in
8 in.

Answers

Answer:

c

Step-by-step explanation:

took test & got it right

Answer:

it is C-192 in2

Step-by-step explanation:

I am 100% sure this is correct


What is the perimeter, to the nearest hundredth of a unit, of polygon
ABCDE ?

Answers

Step-by-step explanation:

answer is 20.31

I'm positive

Can someone please help me answer this question asap thank you . No links please and thank you .

Answers

It’s a 10 to 1 relationship

On the map, Winton ,California is located at(“ (2,10.5) in Lake Tahoe is located at (14,16). Each unit on the map equals 16.5 miles what is the approximate distance between the cities round to the nearest mile.

Answers

Answer:

The distance between the two

points on the map

is 225 units

Step-by-step explanation:

Firstly, we need to calculate the distance in units between the two locations on the map

What we have to use here is the distance formula

Mathematically, we have this as;

D = √(x2-x1)^2 + (y2-y1)^2

(x1,y1) = (2,10.5)

(x2,y2) = (14,16)

we have the distance as follows;

D = √(14-2)^2 + (16-10.5)^2

D = √(12^2 + 6.5^2)

D = √(186.25)

D = 13.65 units

now, from the question, 1 unit on the map represents a distance of 16.5 miles

thus, a distance of 13.65 units will be;

16.5 * 13.65 = 225.225

= 225 units

Is "three less than a number" equivalent to "the difference of three and a number?"
Explain your answer.

Answers

I’ll use “x” as “a number”

So it’s basically asking if-

X-3=X-3

Obviously the answer is yes.
X-3 is equal to X-3.

HELP ASAPPP! I WILL GIVE BRAINLEST TO THE RIGHT PERSON

Answers

Answer:

E and H are the correct answers

Step-by-step explanation:

What is the area, measured in square meters, of the parallelogram shown?
Round to the nearest tenth, if necessary.

Answers

Answer:

A = (11 m)(4.33 m) = 47.6 m^2

Step-by-step explanation:

The width of this parallelogram is (5 m)(sin 60 degrees), or approximately 4.33.  This is the length of the dashed line shown.

The area of this parallelogram is A = (length)(width), which here is:

A = (11 m)(4.33 m) = 47.6 m^2

Answer:

55

Step-by-step explanation:

i think

X-15>-20
Please help first answer gets brainliest

Answers

Answer:

x > -5

Step-by-step explanation:

hope this helps :)

Answer:

x>-5

Step-by-step explanation:

X-15>-20

Add 15 to both sides;

x-15+15=>-20+15

simplify

x>-5

Hope this helped!

Helped by none other than the #QUEEN herself  aka # DrippQueenMo

which are the following statements is 6×7 = 42

Answers

Answer:

A and B are both correct

Step-by-step explanation:

the definitions of the following words are:

factor- a number or quantity that when multiplied with another produces a given number or expression.

multiple- a number that can be divided by another number without a remainder.

6 multiplied with 7 equals 42

42 divided by 7 equals 6

another way of phrasing it:

7 and 6 are factors of 42

and

42 is a multiple of both 7 and 6

hope this helped!

Answer:

42 is a multiple of 7.

6 is a factor of 42

Step-by-step explanation:

Theo rolls a dice 306 times.

Work out an estimate for the number of times Theo rolls an even number

Answers

I believe it would equal to 51!

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HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP

Answers

Answer:

the answer is B - 96 trust me

can someone please help me.​

Answers

Answer:

D = (-4,4)

E = (-4,-4)

the length from d to e is 4

Answer:

It is 3

It is 3

it is 3

it is 3

if a hockey ticket regular cost $25 and the sale price cost $20

Answers

Answer:

The sale price would be 20% off.

Step-by-step explanation:

I hope this helps! Have a great rest of your day!

What’s the answer? PLEASE ! NO LINKS. thanks !

Answers

Answer:

84 [tex]cm^{2}[/tex]

Step-by-step explanation:

find the area of each shape and add them together

Which of the following are equivalent to the expression 9/4(1.75−2 1/4)?

Answers

Answer: -1 1/8 (Decimal: -1.125)

what is the surface of a cubiod sides 2cm,3cm and 5cm?

Answers

Answer: A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.

Step-by-step explanation:

Step-by-step explanation:

2×3×2+2×5×2+3×5×2

12+20+30

=62

Help.me please!!!!!!

Answers

Answer:

5 seconds

Step-by-step explanation:

Please please help me I will give brainileist

Answers

Answer:

26

Step-by-step explanation:

Average = all the numbers added together then divided by the amount of numbers in the equation

21+24+25+25+26+26+26+26+27+29= 255

Since there are ten numbers in this equation, divide the sum by 10

25.5

round up

26

can someone please help with this? real answer only please......ive asked multiple questions today becuz i dont really understand the assignment, please help​

Answers

i believe the answer is A

You're a quality control manager in a fruit juice company. You want to choose
a sample size for a quality check on the cans used to package the juice. From
a batch of 30,000 cans, you want a sample size that will allow you to closely
approximate the population parameters for the entire batch. Which sample
size will most likely produce the least variability among different samples?

Answers

Answer:

246.

Step-by-step explanation:

a) The 95% confidence level two-tail confidence interval for the mean value of the key index of this batch is between 98.22 and 99.78

b) The minimum sample size to achieve this is 246.

Step-by-step explanation:

We have that to find our  level, that is the subtraction of 1 by the confidence interval divided by 2. So:

Now, we have to find z in the Ztable as such z has a pvalue of .

So it is z with a pvalue of , so  

Now, find the margin of error M as such

In which  is the standard deviation of the population(square root of the variance) and n is the size of the sample. So in this question,  

The lower end of the interval is the sample mean subtracted by M. So it is 99 - 0.78 = 98.22

The upper end of the interval is the sample mean added to M. So it is 99 + 0.78 = 99.78.

a) The 95% confidence level two-tail confidence interval for the mean value of the key index of this batch is between 98.22 and 99.78

(b) (5 points) If we want the sampling error to be no greater than 0.5, what is the minimum sample size to achieve this based on the same confidence level with part (a)

We need a sample size of n

n is found when  

Then

Rounding up

The minimum sample size to achieve this is 246.

Find the area of the figure.

40.8 cm2

1128 cm2

47.52 cm2

33.7 cm2

Answers

Answer:

answer is 47.52 cm2

Step-by-step explanation:

follow me please

somebody answer i need Help​

Answers

Answer:

$5.00

Step-by-step explanation:

$5 because it occurs the most

Answer:

$5

Step-by-step explanation:

The mode is the price that appears the most often in a given list.

2/3+1/12 what's the answer

Answers

Answer:

3/4 or 9/12 make the denominators the same then just add

Answer:

9/12 or simplified as 1/4

Step-by-step

2×4/3×4 + 1/12

= 8/12 + 1/12

= 9/12

= 1/4

In December, a car salesman sold 60 cars. In January, he only sold 24. Find the percent decrease in his monthly sales.

Answers

Answer:   45.6

Step-by-step explanation:

60 - (24% × 60) =

60 - 24% × 60 =

(1 - 24%) × 60 =

(100% - 24%) × 60 =

76% × 60 =

76 ÷ 100 × 60 =

76 × 60 ÷ 100 =

4,560 ÷ 100 = 45.6

please help, need help asap!

Answers

The correct answer is letter C

the other answers I already did I just need the division answers​

Answers

Answer:

6÷41 equals 0.14634146341

6÷21 equals 0.28571428571

6÷43 equals 0.13953488372

6÷37 equals 0.16216216216

6÷20 equals 0.3

Step-by-step explanation:

Hope this helps

Hello Kitty has created a new system of conversion for the residents of Kitty Nation. The standard for measurement of length in Kitty Nation is that 8 lenthii = 30 inches and 4 gianthii = 478.8 lenthii. If a design to be sent to Kitty Nation is 294.3 feet long, how many gianthii long will it be? (Include units)

Answers

Answer:

yvcwඨ්‍ය්වුය්tubcccccccccccccuuuuuu,,,v ttttttttrhhhhhhhhh

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