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
krok68 [10]
3 years ago
12

Jamal is studying the temperature changes in water as he moves it from the freezer to a Bunsen burner. He finds that the tempera

ture changes happen to behave in a sinusoidal manner. So, he develops a model to determine when the temperature will be at a peak and when it will be at a valley. He finds that at t = 4 minutes, the temperature reaches a maximum of 26° above freezing, and at t = 30 minutes, the temperature reaches a minimum of 10° below freezing. Which equation BEST models this situation?
A) y = 18cos(1/26(x - 4)) + 8
B) y = 8cos(1/26<(x - 4)) + 18
C) y = 18cos(pi/26(x - 4)) + 8
D) y = 8cos(pi/26(x - 4)) + 18
Mathematics
1 answer:
Marat540 [252]3 years ago
4 0
The correct answer is c)y=18cos(pi/26(x-4))+8
You might be interested in
19 points Solve for c. 5/4c+12=2
VashaNatasha [74]

Answer:

C= -8

Step-by-step explanation:

I used a calculator

8 0
3 years ago
Read 2 more answers
The temperature was 6° C.<br> By how much has it fallen if it is now -5° C?
Butoxors [25]

Answer:

11 °C

Step-by-step explanation:

  • Initial temperature = 6 °C
  • Final temperature = - 5°C
  • Change in temperature

= 6 - (-5)

= 6 + 5

= 11 °C

Hope it helps you in your learning process.

8 0
3 years ago
Read 2 more answers
PLEASE HELP ME
lawyer [7]
18 multiplied with t

Product represents multiplication
The coefficient is 18
and to solve, t/18 is also correct


3 0
4 years ago
Read 2 more answers
Write an inequality to represent the graph. у -5 3 2- x -5 4 3 2 0 2 5 6 8 -2 -3 -5 (3,5) -6- (0,7) -8 -9 -10
Anastaziya [24]

Answer:

3rd one I think

Step-by-step explanation:

5 0
3 years ago
La suma de las edades de tres personas es 127años. La mayor tiene 30 años mas que la menor y la del intermedio 26 menos que la m
Over [174]

Answer:

La mayor tiene 61 años.

Step-by-step explanation:

Sea x,y,z la edad de la mayor, intermedio y la menor respectivamente.

Tenemos las siguientes ecuaciones:

x+y+z=127 (la suma de las edades es 127)

x = z+30 (la mayor tiene 30 años más que la menor)

La frase "y la del intermedio 26 menos que la menor" no tiene sentido, puesto que esto implicaría que la del intermedio es menor que la menor. Luego se asume que la frase ha de ser "y la del intermedio 26 menos que la mayor"

x-26 = y (la del intermedio tiene 26 menos que la mayor).

La segunda ecuación se traduce a x-30 =z. Si reemplazamos todo en la primera ecuación obtenemos

x+(x-26)+(x-30) = 127

Obtenemos la ecuación

3x-56 = 127

Sumando 56 a ambos lados y dividiendo por 3, obtenemos

x = \frac{127+56}{3} = 61

Es decir la mayor tiene 61 años.

6 0
3 years ago
Other questions:
  • What is the solution to the inequality below? <br> i say its b but im not sure
    7·2 answers
  • Write the roster from of<br> { x:x is a factor of 42 }​
    5·1 answer
  • 2r+c+0.5d+8 how many terms does the expression have​
    10·1 answer
  • A developer has 7 1/2 acres of land to build houses on. If each house is to be built on 1/4 -acre plot, how many houses can he b
    6·2 answers
  • The product of v and 5 is less than 43
    11·1 answer
  • You can verify the zeroes of a function y=x^2+6x-7 by using a graph and finding where the graph ..........
    7·1 answer
  • How many pounds are in 351 hectograms to the nearest hundredth
    6·1 answer
  • Solve each equation and check.Show all work.
    14·1 answer
  • What is the slope of the line between -7,-2 and 9,4?
    9·1 answer
  • What is the value of n in the equation shown below?<br> 2² x 21 = (24)3
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!