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
mrs_skeptik [129]
1 year ago
6

Can anyone help me evaluate this f(x)=8+4x the functions are 0 and -2.

Mathematics
1 answer:
Fynjy0 [20]1 year ago
3 0

Answer: f(0)=8

f(-2)=0

Step-by-step explanation:

f(0)=8+4(0)

f(0)=8+0

f(0)=8

f(-2)=8+4(-2)

f(-2)=8+(-8)

f(-2)=8-8

f(-2)=0

You might be interested in
What is 45*90<br><br><br><br>Answer: 4,050
konstantin123 [22]

Answer:

?wdym

Step-by-step explanation:

5 0
2 years ago
Question from my math test.
erastova [34]

Answer:

42

Step-by-step explanation:

3 0
3 years ago
Pls help me in this answer
Margarita [4]

No,

Step-by-step explanation:

because since each point has a 0 on it. That means the point would lie on a line of a graph. Meaning, it would be in between quadrants, but not in one.

5 0
3 years ago
Pleaseeeeeee helpppppp
expeople1 [14]
I’m not sure that question.... sorry
5 0
3 years ago
Read 2 more answers
A person measured the depth of water in a bathtub at two minute intervals after the tap was turned on. Use the line of best fit
Leto [7]

Answer:

The Depth of water in the bathtub initially = 2 cm

Step-by-step explanation:

For this question, we want to f8nd the amount of water present in the bathtub at time t = 0 using line of best fit, that is, linear regression analysis.

The table provided shows that the depth of water in the bathtub (y) changes as time (x) progresses.

Time (min) (x) | 2 | 4 | 6 | 8 | 10 | 12 | | 14

Depth (cm) (y) | 8 | 15 | 29 | 37 | 39 | 49 | 55

Running the analysis on a spreadsheet application, like excel, the table of parameters is obtained and presented in the first attached image to this solution.

Σxᵢ = sum of all the independent variables (sum of all the time data)

Σyᵢ = sum of all the dependent variables (sum of all the depth data)

Σxᵢyᵢ = sum of the product of each dependent variable and its corresponding independent variable

Σxᵢ² = sum of the square of each independent variable (time data)

Σyᵢ² = sum of the square of each dependent variable (depth data)

n = number of variables = 7

The scatter plot and the line of best fit is presented in the second attached image to this solution

Then the regression analysis is then done

Slope; m = [n×Σxᵢyᵢ - (Σxᵢ)×(Σyᵢ)] / [nΣxᵢ² - (∑xi)²]

Intercept b = [Σyᵢ - m×(Σxᵢ)] / n

Mean of x = (Σxᵢ)/n

Mean of y = (Σyᵢ) / n

Sample correlation coefficient r: r =

[n*Σxᵢyᵢ - (Σxᵢ)(Σyᵢ)] ÷ {√([n*Σxᵢ² - (Σxᵢ)²][n*Σyᵢ² - (Σyᵢ)²])}

And -1 ≤ r ≤ +1

All of these formulas are properly presented in the third attached image to this answer

The table of results; mean of x, mean of y, intercept, slope, regression equation and sample coefficient is presented in the fourth attached image to this answer.

The linear regression equation obtained is then

y = 3.911x + 1.857

at a regression coefficient of 0.987 (the closer the value is to 1, the more accurate the equation obtained)

So, the Depth of water in the bathtub initially, that is, when t = x= 0,

y = 3.911x + 1.857

y = 3.911(0) + 1.857 = 1.857 cm = 2 cm to the nearest integer.

Hope this Helps!!!

3 0
3 years ago
Other questions:
  • Determine if the statement is always, sometimes, or never true: A scalene triangle is an acute triangle.
    8·2 answers
  • Find the amount of simple interest earned in one year on an account that has an interest rate of 3.2% and a principal of $250.
    6·1 answer
  • What is the medium of 14.1,20.7,24.3,16.0,20.8
    7·1 answer
  • What is 2 and 1/6 equal to
    7·2 answers
  • Find the value of the integral that converges.<br> ∫^0_-[infinity] x/x^2+3 dx.
    5·1 answer
  • Trigonometry pile up
    9·1 answer
  • What is the square unit of this figure?
    6·1 answer
  • What is the least common multiple (LCM) of 15, 24 and 27?
    7·1 answer
  • how can the number 39 be divided into two parts in order that the sum of 2 upon 3 of one part and 3 upon 4 of the other part is
    7·1 answer
  • Find the least common denominator for these
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!