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
Evgesh-ka [11]
3 years ago
9

The table represents a linear function that shows the number of stamps y that a student collects after x months. Complete the ta

ble.

Mathematics
1 answer:
liberstina [14]3 years ago
6 0

Answer:

24

Step-by-step explanation:

a linear function has the form: y = ax + b

According to the table: b = 5 and a = (43 − 5)/(2 − 0) = 38/2 = 19

Then our function is of the form: y = 19x + 5

Now ,we replace x by 1 in the function to get the missing value :

Missing value = 19(1) + 5 = 19 + 5 = 24.

You might be interested in
Suppose that E(θˆ1) = E(θˆ2) = θ, V(θˆ 1) = σ2 1 , and V(θˆ2) = σ2 2 . Consider the estimator θˆ 3 = aθˆ 1 + (1 − a)θˆ 2. a Show
katen-ka-za [31]

Answer:

Step-by-step explanation:

Given that:

E( \hat \theta _1) = \theta  \ \ \ \ E( \hat \theta _2) = \theta \ \ \ \ V( \hat \theta _1) = \sigma_1^2  \ \ \ \ V(\hat  \theta_2) = \sigma_2^2

If we are to consider the estimator \hat \theta _3 = a \hat  \theta_1 + (1-a)  \hat \theta_2

a. Then, for  \hat \theta_3 to be an unbiased estimator ; Then:

E ( \hat \theta_3) = E ( a \hat \theta_1+ (1-a) \hat \theta_2)

E ( \hat \theta_3) = aE (  \theta_1) + (1-a) E ( \hat \theta_2)

E ( \hat \theta_3) = a   \theta + (1-a)  \theta = \theta

b) If \hat \theta _1 \ \  and  \ \   \hat \theta_2 are independent

V(\hat \theta _3) = V (a \hat \theta_1+ (1-a) \hat \theta_2)

V(\hat \theta _3) = a ^2 V ( \hat \theta_1) + (1-a)^2 V ( \hat \theta_2)

Thus; in order to minimize the variance of \hat \theta_3 ; then constant a can be determined as :

V( \hat \theta_3) = a^2 \sigma_1^2 + (1-a)^2 \sigma^2_2

Using differentiation:

\dfrac{d}{da}(V \ \hat \theta_3) = 0 \implies 2a \ \sigma_1^2 + 2(1-a)(-1) \sigma_2^2 = 0

⇒

a (\sigma_1^2 + \sigma_2^2) = \sigma^2_2

\hat a = \dfrac{\sigma^2_2}{\sigma^2_1+\sigma^2_2}

This implies that

\dfrac{d}{da}(V \ \hat \theta_3)|_{a = \hat a} = 2 \ \sigma_1^2 + 2 \ \sigma_2^2 > 0

So, V( \hat \theta_3) is minimum when \hat a = \dfrac{\sigma_2^2}{\sigma_1^2+\sigma_2^2}

As such; a = \dfrac{1}{2}       if   \sigma_1^2 \ \ =  \ \  \sigma_2^2

4 0
3 years ago
Please help me with this
alexandr402 [8]
The base of the prism is a 6 cm square. Any cross section parallel to the base has the same dimensions as the base, so is a 6 cm square. Its area is ...
  (6 cm)² = 36 cm²
8 0
3 years ago
A rental car company charges $52 per day to rent a car and $0.12 for every mile
AnnZ [28]

Answer:

Step-by-step explanation:

SHOULD HAVE BEEN TAKING NOTES THEY HELP ON THE TEST

3 0
1 year ago
Read 2 more answers
Is y=2^x linear, exponential or neither
stepladder [879]
Answer:
exponential

Step-by-step explanation:
An exponential function is defined as a function with a positive constant other than 1 raised to a variable exponent. A function is evaluated by solving at a specific input value. An exponential model can be found when the growth rate and initial value are known.

3 0
3 years ago
What is the number six million, thirty thousand, expressed in scientific notation? 6.03 × 10^6
TEA [102]
The answer is B. 6.3 * 10^6
6.3 * 10^6 = 6,300,000
Hope this helps!
8 0
3 years ago
Read 2 more answers
Other questions:
  • PPPPLLLLEEEEAAASSSEEE HHHHEEELLLPPP!!!!!!
    8·1 answer
  • What is an expression in math?
    5·2 answers
  • I need help with this question I don't understand it
    9·2 answers
  • One side of a square is 8 centimeters long what is the area
    13·1 answer
  • Please help me..
    5·1 answer
  • What is the percent increase from 35 birds to 45 birds?
    11·2 answers
  • What’s the answer bc I cannnot forgive this out rs
    12·1 answer
  • Use the figure to find the value of X?
    7·2 answers
  • Carnival A charges an entrance fee of $3.00 and $0.75 per ticket for the rides. Carnival B charges an entrance fee of $14.00 and
    5·2 answers
  • Help me pleas I'm stuck​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!