lori finds her company's profit by subtracting the company's costs from its revenue. the profit loris company is represented by the expression 20x^2+2x+12. if its revenue is modeled by the expression 35x^2-2x+17, what is the companys costs?

Answer:

x = -2

Step-by-step explanation:

Answer:

Option A is correct.

Braylee's music is 3 times louder than Jessica's.

Step-by-step explanation:

Full Complete Questions

The loudness, L, measured in decibels (Db), of a sound intensity, I, measured in watts per square meter, is defined as

L = 10log (I/I₀), where lo = 10⁻¹² W/m²

and is the least intense sound a human ear can hear.

Jessica is listening to soft music at a sound intensity level of 10⁻⁹ W/m² on her computer while she does her homework.

Braylee is completing her homework while listening to very loud music at a sound intensity level of 10⁻³ W/m² on her headphones. How many times louder is Braylee’s music than Jessica’s?

times louder

3 times louder

30 times louder

90 times louder

Solution

The loudness of a sound intensity is given as

L = 10 log (I/I₀)

For Jessica

I = 10⁻⁹ W/m²

I₀ = 10⁻¹² W/m²

L = 10 log (10⁻⁹/10⁻¹²)

L = 10 log (10³)

L = 10 × 3 = 30 dB

For Braylee

I = 10⁻³ W/m²

I₀ = 10⁻¹² W/m²

L = 10 log (10⁻³/10⁻¹²)

L = 10 log (10⁹)

L = 10 × 9 = 90 dB

How many times louder is Braylee's music than Jessica's?

The factor by which Braylee's music is louder than Jessica's = (90/30) = 3

Braylee's music is 3 times louder than Jessica's.

Hope this Helps!!!

Answer:

3 times louder

Step-by-step explanation:

Answer:

The answer is 1690, and then 1630

Step-by-step explanation:

2050, 1990, 1930, 1870, 1810, 1750, 1690, 1630

Each number is going down by 60

===============================================================

Explanation:

This is an arithmetic sequence. We are adding -60 to each term to get the next term. Put another way, we are subtracting 60 from each term to get the next.

term 1 = 2050

term 2 = (term1) + (-60) = (term1) - 60 = 2050 - 60 = 1990

term 3 = (term2) + (-60) = (term2) - 60 = 1990 - 60 = 1930

term 4 = (term3) + (-60) = (term3) - 60 = 1930 - 60 = 1870

and so on

Keeping this pattern up, we get these next two terms

1750 - 60 = 1690

1690 - 60 = 1630

which are the two answers

-----------

If you want to use a formula, then a1 = 2050 is the first term and d = -60 is the common difference. We get this nth term formula

a(n) = a1 + d(n-1)

a(n) = 2050 + (-60)(n-1)

a(n) = 2050 - 60n + 60

a(n) = -60n + 2110

Then note that six terms of the sequence are given to us. This means we want to find the 7th term, so we plug in n = 7 to get

a(n) = -60n + 2110

a(7) = -60(7) + 2110

a(7) = -420 + 2110

a(7) = 1690

The 7th term is 1690

Repeat for n = 8

a(n) = -60n + 2110

a(8) = -60(8) + 2110

a(8) = -480 + 2110

a(8) = 1630

The 8th term is 1630

Answer:

----

Step-by-step explanation:

My answer was wrong...

No way to delete...

Answer:

c.

Step-by-step explanation:

10.98/2=5.49

16.19/3=5.40

21.15/4=5.29

26.85/5=5.37

Answer:

the answer to the question is D

Answer:

4/45

Step-by-step explanation:

the answe ris 45

Answer:

50/50

Step-by-step explanation:

Answer:

I wanna say its D. $259.67

Step-by-step explanation:

Some one should back my answer but I hope this helps you

Answer:

for odyessyware users, the option is 202.23 instead og 259.67 if that helps anyone

Step-by-step explanation:

peace and good luck ya'll =)

Answer:

I dont know it this is the answer u r looking for but out of everything on the list, brazil has 2.2222222222222 percent

Answer:

3.9%  

Step-by-step explanation:

add up all the Olympic medals =485

Brazil = 19

to get the rank of Brazil 19/ 485 =0.039175..... multiply by 100 to get %

Answer:

B or -h

Step-by-step explanation:

i took the quiz

Answer:

0 & 1.

Step-by-step explanation:

√2 = 1.41421356237

Answer:

red = 3/13

yellow = 6/13

blue= 4/13

Step-by-step explanation:

breainliest really needed!!

The probability of selecting the red marble and yellow marble is 18/169.

Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.

We know that, probability of an event = Number of favourable outcomes/Total number of outcomes.

Given that, a bag contains 3 red, 4 blue, and 6 yellow marbles.

Total number of outcomes = 3+4+6=13

Probability of selecting red marble = 3/13

Probability of selecting yellow marble = 6/13

So, P(red and yellow) = 3/13 × 6/13

= 18/169

Therefore, the probability of selecting the red marble and yellow marble is 18/169.

To learn more about the probability visit:

https://brainly.com/question/11234923.

#SPJ2

Answer:

24 cm²

Step-by-step explanation:

The area (A) is calculated as

A = [tex]\frac{1}{2}[/tex] product of the diagonals, that is

A = 0.5 × 6 × 8 = 24 cm²

Answer:

Option A,$320.98  is correct

Step-by-step explanation:

The new balance on Elijah's credit is the sum of the last balance plus new charges minus payments made.

last balance as shown by the statement was $152.58

new charges were $213.40

payment made by Elijah was  $45

new balance=$152.58+$213.40-$45=$320.98

The rationale for this is that the new charges on the card account add to previous balance owed by Elijah while the payment of $45 made reduces overall balance.

Answer:

Other answer is incorrect. Elijah's new balance would be $322.59

Your welcome.

Answer: One large pizza with a radius of 12 inches

Step-by-step explanation:

Hi, to answer this question we have to calculate the area of each option.

Area of a circle: π r^2  

A = π r^2 = π 6^2 = 113.1 in2

Since there are 2 small pizzas we have to multiply the area by 2:

113.2 x 2 = 226.2 in2

A = π r^2 = π 12^2 = 452.38 in2

Since 452.38 in2 > 113.1 in2

Option 2 (one large pizza) will give her more square inches of pizza

Feel free to ask for more if needed or if you did not understand something.  

Answer:

B

Step-by-step explanation:

Answer:

I don't understand.......

Answer:

11.3

Step-by-step explanation:

i used the theorem of Pythagoras

Answer:

11.3

Step-by-step explanation:

In a right angled triangle:  the square of the hypotenuse is equal to

the sum of the squares of the other two sides.

[tex]8^{2} + 8^{2} = x^{2}[/tex] (x is the hypotenuse)

64 + 64 = [tex]x^{2}[/tex]

[tex]x^{2}[/tex] = 128

=> x = [tex]\sqrt{128}[/tex] = 11.3137085 = 11.3

Answer:

The answer is 5 units.

Step-by-step explanation:

3^2+4^2=25. √25=5 units

Mark Brainliest and stay safe!!

Answer:

4/5

Step-by-step explanation:

8/10=4/5

Answer:

700/821, 429/821, 700/429

Step-by-step explanation:

SOH, CAH, TOA

Sin= opp/hyp

Cos= adj/hyp

Tan= opp/adj

Answer:

The area of the trapezoid would be 115 inches.

Answer:

Step-by-step explanation:

the false statement is " the y axis is tangent to the circle"

Answer:

0.02 repeating

Step-by-step explanation:

So first we do 2/9 since all the operations are division we solve left to right. We get 0.2 repeating. Then, after that whenever we divide by 10, we shift everything to the right so we end up with :

0.02 repeating.

Answer:

Step-by-step explanation:

1 in=2 ft

Bedroom 1

scale

17.5 in ×12.5in

actual

(17.5×2)×(12.5×2)

or

35 ft×25 ft

Living Room

scale

17.5 in×17.5 in

actual

35 ft×35 ft

Bathroom 1

scale

12.5 in×12.5 in

actual

25 ft×25 ft

Kitchen

scale

17.5 in ×12.5 in

actual

35 ft×35 ft

Bedroom2

scale

12.5 in ×12.5 in

actual

25 ft×25 ft

Entryway

scale

12.5 in×12.5 in

actual

25 ft×25 ft

Bathroom 2

scale

12.5 in×5 in

actual

25 ft×10 ft