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
PilotLPTM [1.2K]
3 years ago
7

What the answer is for this question

Mathematics
1 answer:
ale4655 [162]3 years ago
4 0

Answer:

im pretty sure its 24

Step-by-step explanation:

because 12+12=24

You might be interested in
Penelope invested 60% of her retirement account in stocks and 40% in gold. Penelope believes that the return to stocks over the
hjlf

Answer:

1) mean = 21, standard deviation σ = 21.9317

2) the probability that Penelope's portfolio will earn at least 12% in the next 12 months is 0.6591

Step-by-step explanation:

 Given the data in the question;

1. According to Penelope's beliefs, what are the mean rate of return and the standard deviation of return of her portfolio?

Mean μ = Return = ( 60% × 15) + ( 40% × 30 ) = 9 + 12 = 21

mean = 21

standard deviation σ = √( (0.6² × 25²) + ( 0.4² × 40² ) )

standard deviation σ = √( (0.36 × 625) + ( 0.16 × 1600 ) )

standard deviation σ = √( 225 + 256 )

standard deviation σ = √481

standard deviation σ = 21.9317

2)  What is the probability that Penelope's portfolio will earn at least 12% in the next 12 months

so we are to find P( X > 12 )

converting into standard normal variable;

⇒ P( Z  > X-μ  / σ  )

= P( Z  > ( 12-21  / 21.9317  ) )

= P( Z  > ( -9 / 21.9317  ) )

= P( Z  > -0.41 )  

FROM z-score table; P( Z  > -0.41 ) is 0.3409

P( X > 12 ) = 1 - 0.3409

P( X > 12 ) = 0.6591

Therefore,  the probability that Penelope's portfolio will earn at least 12% in the next 12 months is 0.6591

3 0
3 years ago
To join a fitness club there is a $30 joiner fee and a $12 monthly fee. Write an equation in slope intercept form that models th
Anastasy [175]
Y=12x+30

I think this is correct. But please don't hold me to it:) Hope I helped!

6 0
3 years ago
Juan is filling a tank. The graph shows the amount of water in liters) in the tank versus time (in minutes).
3241004551 [841]

Answer:

Step-by-step explanation:

To answer all the parts given find the equation of the line given in the graph.

Let the equation is,

y = mx + b

m = slope of the line

b = y-intercept

x = time

y = Amount of water

Slope of a line passing through two points (x_1,y_1) and (x_2, y_2) is,

m = \frac{y_2-y_1}{x_2-x_1}

Slope of the given line passing through (0, 80) and (1, 320)

m = \frac{320-80}{1-0}

m = 240

Y-intercept 'b' = 80

Therefore, y = 240x + 80 will be the equation.

a). At x = 0

y = 240(0) + 80

y = 80 liters

b). As the time is increasing amount of the water is increasing

Rate of increase in the water = Slope of the line

                                                = 240 liters per minute

5 0
3 years ago
Brian has been playing a game where he can create towns and help his empire expand. Each town he has allows him to create 1.17 t
Hitman42 [59]
The required equation is  x = 1.17y
here x = no. of villagers
and y = no. of towns

1.17 is a constant that can be said to be C
4 0
3 years ago
Read 2 more answers
A spinner has five congruent sections, one each of blue,green,red,orange, and yellow. Yuri spins the spinner 10 times and record
Ulleksa [173]

Answer:  1st, 3rd  and 5th answers are correct

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
Other questions:
  • A new york city taxi charges $3 per ride plus an additional $0.50 per mile which function below shows how to calculate the total
    14·1 answer
  • Can some one please help me on ONLY on number 12
    11·2 answers
  • Zack's science teacher gave each student in his class 15.0 grams of an unknown substance to identify. Each student was required
    12·2 answers
  • What is the sum of two numbers a and b decreased by their product?
    5·2 answers
  • Mr. and Mrs. Dorsey and three children are flying to spring field. the cost of each ticket is 179. estimate how much tickets wil
    5·1 answer
  • Adam works for an agency
    12·1 answer
  • I need helps can someone help me please!!!
    12·2 answers
  • Hi can someone help me with the question above?
    8·1 answer
  • Mary moves 3 steps backward as she dances​
    10·1 answer
  • Help if so omg ur amazing
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!