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
pentagon [3]
3 years ago
11

A thermometer reading 7 °C is brought into a room with a constant temperature of 34°C. If the thermometer reads 14 °C after 4 ​m

inutes, what will it read after being in the room for 6 ​minutes? For 11 ​minutes?
Mathematics
1 answer:
never [62]3 years ago
6 0
For this case we are going to define the following variable:
 x: time in minutes
 We write the linear function that represents the problem:
 t (x) = (14/4) x + 7
 For x = 6 we have:
 t (6) = (14/4) * (6) + 7
 t (6) = 28 ° C
 For x = 11 we have:
 t (11) = (14/4) * (11) + 7
 t (11) = 45.5 ° C
 Answer:
 
t (6) = 28 ° C
 
t (11) = 45.5 ° C
You might be interested in
What does sum mean I don't know how to do it plz help​
belka [17]

Answer:

Step-by-step explanation:

Hello there is no question

6 0
3 years ago
Read 2 more answers
Show me how to solve -6+x/4= -5
schepotkina [342]
Multiply 4(-5) then add 6 and theres your X

7 0
3 years ago
A city has 7204 recycle bins. The city gives half of the recycle bins to it's citizens. The rest of the recycle bins are divided
Tju [1.3M]
The number of recycle bins that the city gives to citizens:
7204 : 2= 3602
The number of recycle bins is left:
7204 - 3602= 3602
The largest number of bins that can be given in each group:
3602 : 23 = 156 (residual: 14)
=> There are 14 bins left over.
4 0
3 years ago
Evaluate the expression for the given value of the variable.
Fudgin [204]

Answer:

The answer is three please give brainliest:D

Step-by-step explanation:

4 0
2 years ago
Calculate the expected value, the variance, and the standard deviation of the given random variable X. (Round all answers to two
Tom [10]

Answer:

E (X) = 1.8

Var (X) = 0.36

σ = 0.6

Step-by-step explanation:

Solution:-

- Denote the random variable X : is the number of red marbles that Suzan has in her hand after she selects three marbles.

- Total sample space (bag) have the following quantity of colored marbles:

                Bag : { 3 Red , 2 Green }

- Suzan selects three marbles from the bag. The Event (X) defines the number of red marbles out of 3.

- The total number of outcomes / selections for randomly selecting 3 balls from the bag:

               All outcomes = 5 C 3 = 10

- The probability distribution of the random variable X, we will use combinations to determine the required probabilities:

  X = 1 red marble:

        P ( X = 1 ) : Suzan chooses 1 Red marble from the available 3 red marble and 2 green marbles.

        P ( X = 1 ) = [ 3C1*2C2 ] / all outcomes = (3*1) / 10 = 0.3

X = 2 red marble:

        P ( X = 2 ) : Suzan chooses 2 Red marble from the available 3 red marble and 1 green marbles.

        P ( X = 2 ) = [ 3C2*2C1 ] / all outcomes = (3*2) / 10 = 0.6

X = 3 red marble:

        P ( X = 3 ) : Suzan chooses 3 Red marble from the available 3 red marble.

        P ( X = 3 ) = [ 3C3] / all outcomes = (1) / 10 = 0.1

- The probability distribution is as follows:

          X :         1                 2                3

       P (X):       0.3            0.6              0.1

- The expected value E(X) for the given random variable X is:

                E ( X ) = ∑Xi*P(Xi)

                           = 1*0.3 + 2*0.6 + 3*0.1

                           =1.8

- The variance Var(X) for the given random variable X is:

                Var ( X ) = ∑Xi^2*P(Xi) - [ E(X) ] ^2

                               = 1^2*0.3 + 2^2*0.6 + 3^2*0.1 - 1.8^2

                               = 0.36

- The standard deviation for the given random variable X is:

                σ = √Var(X)

                σ = √0.36

                σ = 0.6

5 0
3 years ago
Other questions:
  • If f(x) = 0.5(3 - x), what is the value of f(-3)?<br> A: 3<br> B: 1.5<br> C: 0.5<br> D: 0
    6·1 answer
  • What type of angle is ∠CEB ?<br><br><br> straight<br><br> obtuse<br><br> acute<br><br> right
    11·2 answers
  • scientists says there that says that there are 43.2 x 10,000 Birds in the United States all those birds 1/8 or chickens how many
    12·1 answer
  • {9-[8-(1/3+1/4)×6]}÷[8(1/3+1/2)×6]
    15·1 answer
  • 2. Simplify 2(54−1)3 completely. Show as much work as possible for full credit.
    14·2 answers
  • A company employs 400 salespeople. Of these, 83 received a bonus last year, 100 attended a special sales training program at the
    11·2 answers
  • Mmm. a wanna knowwwcghwchgchcwgc error error error
    9·1 answer
  • A regular pentagon and an equilateral triangle have the same perimeter...........
    7·1 answer
  • Use green theroem to find integral of x^2ydx-xy^2dy
    15·2 answers
  • The ages of all 6 tigers at the local zoo are: 4,11,12,7,6,20
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!