1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Crazy boy [7]
3 years ago
14

ASAP! GIVING BRAINLIEST! Please read the question THEN answer CORRECTLY! NO guessing. I say no guessing because people usually g

uess on my questions.

Mathematics
1 answer:
zimovet [89]3 years ago
7 0

Answer:

B. (f + g)(x) = x - 7

Step-by-step explanation:

<u>→Set it up, like so:</u>

-3x - 5 + 4x - 2

<u>→Add like terms (-3x and 4x, -5 and -2):</u>

x - 7

You might be interested in
I'm not really good at math, but i would appreciate it if i can get some help with this math problem. 2y^3-4x^2-4-1+3x^2-3y^3-y^
SOVA2 [1]

Answer:

-2y^2 -x^2 -5

Step-by-step explanation:

Just simplify everything. I recomend putting them in seperate groups. By exponent. Don't forget the signs, they are very important.

3 0
2 years ago
A study of the career paths of hotel general managers sent questionnaires to an SRS of 280 hotels belonging to major U.S. hotel
const2013 [10]

Answer and Step-by-step explanation:

we have the following data:

Point estimate = sample mean = \ bar x = 12.39

Population standard deviation = \ sigma = 3.7

Sample size = n = 177

a) the margin of error with a 90% confidence interval

α = 1 - 90%

alpha = 1 - 0.90 = 0.10

alpha / 2 = 0.05

Z \ alpha / 2 = Z0.05 = 1,645

Margin of error = E = Z \ alpha / 2 * (\ sigma / \ sqrtn)

we replace:

E = 1.645 * (3.7 / \ sqrt177)

Outcome:

E = 0.46

b) margin of error with a 99% confidence interval

α = 1-99%

alpha = 1 - 0.99 = 0.01

alpha / 2 = 0.005

Z \ alpha / 2 = Z0.005 = 2,576

Margin of error = E = Z \ alpha / 2 * (\ sigma / \ sqrtn)

we replace:

E = 2,576 * (3.7 / \ sqrt177)

Outcome:

E = 0.72

c) A larger confidence interval value will increase the margin of error.

6 0
2 years ago
Solve for x. 20 points!
Korolek [52]

Answer:

x=-12

Step-by-step explanation:

7 0
3 years ago
Harry has a small business cleaning kitchens and bathrooms. He usually cleans a bathroom in 1 hour and cleans a kitchen in 45 mi
Bumek [7]

Answer:

8 bathroom jobs and 9 kitchen jobs

Step-by-step explanation:

B=60

K=20

8*60=480

9*20=180

that would give harry 660 dollars in a week. HOWEVER- we have to make sure that its equal to or less than 15 hours of work.

8*1h= 8 hours in bathroom

9*45m=6.75hr in kitchen

8 hours+6.75 hours=14.75hr 14.75 hr<15hr so it works.

4 0
3 years ago
The original quantity is 20 and the new quantity is 15. Adam incorrectly says the percent decrease is about ​14.29%. What is the
Yuki888 [10]

Answer: A. divided the difference of the two quantities by the sum of the two quantities.

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

Explanation:

The difference of the quantities is 20-15 = 5

The sum of the quantities is 20+15 = 35

Dividing those results leads to 5/35 = 0.142857 which rounds to 0.1429

That converts to 14.29%

This is likely the path Adam took. This path is incorrect. The correct steps are shown below

---------------------

Difference = 20-15 = 5

Divide the difference over the original quantity

5/20 = 1/4 = 0.25 = 25%

We have a 25% decrease because the new quantity (15) is smaller than the old quantity (20)

----------------------

Here's another way to approach the problem

A = old value = 20

B = new value = 15

C = percent change

C = [ (B-A)/A ] * 100%

C = [ (15-20)/20 ] * 100%

C = (-5/20)*100%

C = -0.25*100%

C = -25%

The negative C value means we have a negative percent change, ie we have a percent decrease. So this is another way to get a 25% decrease.

4 0
2 years ago
Read 2 more answers
Other questions:
  • The table shows results for the 100 meter sprint.
    13·1 answer
  • Ann had
    8·1 answer
  • Given: Point K is between Points J and L. KL=9x+2, KJ=5x–8 and JL = 12x. Find KL.
    10·1 answer
  • If u can help me and show work plzzz!!!
    5·1 answer
  • The Greatest common factor of 28 and 32
    5·2 answers
  • What is the correct integer for the following: a deposit of $1000?
    11·1 answer
  • Mr. and Mrs ------ Have a number of children. if 0.83 of the childern are male, what is the least possible number of people in t
    14·1 answer
  • Luka's weekly earnings of $475 are increased by 6% calculate his new weekly earnings
    11·1 answer
  • Find a polynomial function of degree 3 with 2, i, -i as zeros.
    10·1 answer
  • An electronics store sells a laptop for p. During the sales period, the shopkeeper offers a 30% discount on the initial price. A
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!