Mathematics College

Find the sum of these polynomials.
(4x2 + 3x - 1) + (x2 - 5x - 6) =

Answers

Answer 1

Answer:      5x2-2x-7

Step-by-step explanation:

(4x2 + 3x - 1) + (x2 - 5x - 6)

=4x2+3x-1+x2-5x-6

=5x2-2x-7

Related Questions

A new shopping mall is considering setting up an information desk manned by one employee. Based upon information obtained from similar information desks, it is believed that people will arrive at the desk at a rate of 20 per hour. It takes an average of 2 minutes to answer a question. It is assumed that the arrivals follow a Poisson distribution and answer times are exponentially distributed. Assume that the information desk employee in Problem 1 earns $10 per hour. The cost of waiting time, in terms of customer unhappiness with the mall, is $12 per hour of time spent waiting in line. Find the total expected costs over an 8-hour day

Answers

Answer:

tsc = 8*1*10 = $80

twc = 8*20*0.0667*12 = $128.06

tc = 80 + 128.06 = $208.06

Step-by-step explanation:

To find the total expected costs for an 8 hour period, first you must find the total service costs (tsc) and the total waiting costs (twc) as the two costs are what make up the total cost (tc).

Total service cost = (the number of channels)(cost per channel)

tsc = m*Cs

There is only 1 employee so the number of channels is 1.

The cost for this channel is $10 per hour, so 10 * 8 hours in the day.

Total waiting cost = (total time spent waiting by all arrivals)(cost of waiting)

twc = (number of arrivals)(average wait per arrival) Cw

The number arrivals is at the rate of 20 per hour.

The average wait per arrival was found as Wq previously.

                 Wq = 20/(30*(30-20)) = 0.0667 hours

The cost of waiting (Cw) is the $12 per hour multiplied by the 8 hour day.

Total Expected Cost for an 8 hour day is the sum of the total service cost plus the total waiting cost.

PLEASE HELP ME ASAPPPPPPPPPPPPPPPPPPPPP

Answers

Jug=gallons
Box=cubic feet

Good luck!

Drag the expressions into the order in which the expressions are listed from greatest value to least value. Place the expression with the greatest value at the top and the one with the least value at the bottom.
(5280×10)−(314×10)

5280−314

10.6× (5280 −314)

(5280−314)÷111

Answers

Answer:  1.  (5280 - 314) ÷ 1/11  2.  10.6 x (5280 - 314)  3.   (5280 x 10) - (314 x 10)  4.   5280 - 314

Step-by-step explanation:

I did the test!
Answer:

Greatest expression=10.6× (5280 −314)

Least expression= (5280−314)÷111

Step-by-step explanation:Definition of greatest value and least value

The greatest value is the maximum value in given observation and least value is the minimum value in the given observation.

Solution of first expression

[tex](5280*10)-(314*10)= 52800-3140\\=49660[/tex]

Solution of second expression

[tex]5280-314= 4966[/tex]

Solution of third expression

[tex]10.6*(5280-314)=53632.8[/tex]

Solution of fourth expression

[tex](5280-314)/111=44.74[/tex]

From the above observation we can observe that greatest and least value are 53632.8 (which is third expression ) and least value 44.74(which is fourth expression)

To know more about solving expression

https://brainly.com/question/23180795

#SPJ2

Guys please i need help in this question, whoever gets it right will get a brainliest

dont pay attention to the bots responding with links, there not the answers

Answers

Answer:

14- 1/5

15- 9/20

16- 11/20

Step-by-step explanation:

find the erea of the trapezoid.

Answers

Answer:

36

Step-by-step explanation:

A (base) 6

B (Base) 12

H (height) 4

HELPPPP!!!!! What is the value of y?
B
60
А
5
с
Enter your answer, as an exact value, in the box.
y =

Answers

Answer:

y = 8.66

Step-by-step explanation:

tan 60° = y/5

1.7321= y/5

y = 8.66

Solve for x. Show or explain your work. Then, verify that your solution is correct. 5(2 + 5) = 6 − 10 –

Answers

ppppp)is dilated from the origin by scale factor r to the world

help lol the last answer choice is y=5/3x-10

Answers

Answer:

C

Step-by-step explanation:

help please, asap. i need this done

Answers

Answer:

30

Step-by-step explanation:

24/4=6

42/7=6

6 x 5=30

What value will make the equation true?

Answers

Answer:

-.6

Step-by-step explanation:

-2.1 - x = -1 1/2

Change the fraction to a decimal

-2.1 -x = - 1.5

Add 2.1 to each side

-2.1 -x+2.1 = -1.5 +2.1

-x = .6

Multiply each side by -1

x = -.6

which expression is equivalent to (2x ^2 +6)(x-2)

Answers

Answer:

B

Step-by-step explanation:

Answer:

D.

Step-by-step explanation: First multiply 2x^2 to x - 2 to get 2x^3 - 4x^2

and then multiply 6 to x - 2 to get 6x - 12. Then put the equation together:

2x^3 - 4x^2 + x - 2

Steven jogs around a circular field with a diameter of 70 yd. Find the area of the field.

Answers

Answer:

3848.46 :)

Step-by-step explanation:

Area: 3848.4510006475

1225π


We need 14 feet of casing to put along all four sides of a rectangular window. If the length of the window is 4 feet , find the width .

Answers

the perimeter is 14
4 + 4 = 8
3 + 3 = 6
6 + 8 = 14
the width is 3 feet
The width is 3 feet and the perimeter is 14 hope it helps

Please help!

First phtoto is the answer options for all questons

Second image is the Questions

Answers

Answer:

M is (-7,3)

N is (0,1)

I think p is (4,0) but the option isn’t there so I must’ve done something wrong though I can’t find what-

Help please I will give Brainliest to whoever answeres.

Answers

Answer:

area = 220.5 ft²

Step-by-step explanation:

2(Length) + 2(10.5) = 63 feet

2L + 21 = 63

subtract 21 from each side of the equation:

2L = 42

divide both sides by 2:

L = 21 feet

area = L x W = 21 x 10.5 = 220.5 ft²

Answer:

A = 220.5 ft

Step-by-step explanation:

[tex]2(Length) + 2(10.5) = 63 feet\\[/tex]

[tex]2L + 21 = 63\\[/tex]

[tex]63 - 21[/tex]

[tex]2L = 42[/tex]

[tex]42/2[/tex]

L = 21 feet

[tex]A=l * w[/tex]

[tex]21 x 10.5 = 220.5 ft^{2}[/tex]

Hope this helps

can u plz help me ok i need help

Answers

Answer:

the answer is 47 sprinklers

Step-by-step explanation:

so the system is 188 and there is one sprinkler every 4 feet

so 188/4 which would give u 47

The answer is the first one, 47 sprinklers.

A 6-foot ladder is placed against a wall with its base 2
feet from the wall. How high up the wall is the top of the
ladder? (HINT: Draw a diagram to help you visualize
the problem.)

Answers

the top of the ladder is 5.7 feet up the wall!!

HELP NOW WHOEVER ANSWERS FIRST WILL GIVE BRAINLYIST

Answers

Answer:

if these are the same pictures but just tilted then the answer should be 5 units

Step-by-step explanation:

Answer:

it is 5

Step-by-step explanation:

i dont feel like a step by step

k over 1.5 equals 3 what is k

Answers

Answer:k=4.5

Step-by-step explanation:4.5/1.5=3

Question
Use a number line to compare the following fractions: 4/3 7/6

Answers

The comparison is that:

4/3 is greater than 7/6 and 7/6 is less than 4/3

The fractions are given as:

4/3 and 7/6

See attachment for the number line that represents both fractions

From the number line. 4/3 is at the right of 7/6

This means that:

4/3 is greater than 7/6 and 7/6 is less than 4/3

Read more about number lines at:

https://brainly.com/question/10851163

Anyone know how to answer this question

Answers

its b:)! hoped this helped<3

Michelle opened an
interest-bearing savings
account. She deposited $8,750
into the account. If the account
earns 1.3% interest, what will
be Michelle's balance after two
years?

PLEASE HELP

Answers

The answer is 2,275

The percent turns from 1.3 to .013
Multiply the deposit and the time
After, multiply that amount that you get by the decimal( .013) and that will be your answer

The length of a rectangle is 16 meters and the width is 3 meters. Find the area.

Answers

Answer:

16x3= 48 so the answer is 48m^2

HELPP !!! I need help

Answers

Imy ding guardian guardian Angel

Answer:

4. the answer is 5.4 which is between 5 and 6.

5. the answer is C.

Step-by-step explanation:

for #4 you just had to divide 27 by 5, and for #5 both numbers are positive so they are in the first quadrant.    

1) Find two positive consecutive integers that have a product of 30?
​

Answers

Let me think bout this gmmm

Answer:

{-6,-5} and {5,6}

Step-by-step explanation:

let me know if this is what you are looking for :)

$102 headphones, 7.5% tax

Answers

Answer:

You are correct the tax would be that

Step-by-step explanation:

A merry go around has a radius of 18 ft. If a passenger gets on a horse located at the edge of the wheel and travels 38ft, find the angle of rotation to the nearest degree

Answers

Answer:

121 degrees

Step-by-step explanation:

Given

Radius r = 18ft

Length of the arc = 38ft

Required

angle of rotation

Using the formula

Length of an arc = theta/360 * 2πr

Substitute the given data

38 = theta/360 * 2π(18)

38 = theta/360 * 113.04

theta/360 = 38/113.04

theta/360 = 0.33616

theta = 0.33616 * 360

theta = 121.02

Hence the angle of rotation to the nearest degree is 121 degrees

Mr. Esposito is 5 foot 11 inches tall. Mrs. Humbert is 63 inches tall. Who is taller and by how much?

Answers

Answer:

Mr. Esposito is taller By 8 inches

Step-by-step explanation:

5 feet and 11 inches is equal to 71 inches. And 71 inches is greater than 63 inches. Therefore, Mr. Esposito is taller.

(71-63=8)

DON'T FORGET TO DOUBLE-CHECK!

Answer:

Mr. Esposito is taller by 8 inches

Step-by-step explanation:

Mr. Esposito

12x5 = 60 + 11 = 71

Mrs. Humbert

63 inches = 5 foot and 3 inches

71 - 63 = 8

the answer to this question

Answers

the answer to this problem is 3

Answer:

3

Step-by-step explanation:

Which vector below goes from (0,0) to (2,2)?

A. c

B. a

C. b

D. d

Answers

Answer:

i say it's A.c

I hope it helped

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