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
rosijanka [135]
3 years ago
11

Write an equation that models the sequence 400, 200, 100, 50, ...

Mathematics
2 answers:
Julli [10]3 years ago
3 0
You're starting at 400. Each time you're cutting in half. 

So the common ratio is 1/2 which means the equation is

\Large y = 400(1/2)^{x-1}

which is in the geometric sequence format. So the answer is choice D
Svetlanka [38]3 years ago
3 0

Answer:

he answer is D.)y = 400(1/2)X-1

Step-by-step explanation:


You might be interested in
Which of the following fractions will convert to terminating decimals? A.5/6
dexar [7]

Answer:

answer E

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
15% of a number is 30. What is the number?​
Solnce55 [7]

Answer:

60 percent

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Solve the pair of simultaneous equations and leave the answer as a fraction in
Elena-2011 [213]

Answer:

x = 11/3 = 3 2/3

y = 13/3 = 4 1/3

Step-by-step explanation:

Here, we want to solve the system of equations simultaneously

x + y = 8

2x -3 = y

From the second equation, we have an equation for y

we can simply proceed to substitute this into the first equation

x + 2x - 3 = 8

3x - 3 = 8

3x = 8 + 3

3x = 11

x = 11/3

Recall;

y = 2x - 3

y = 2(11/3) - 3

y = 22/3 - 3

y = (22-3(3))/3

y = (22-9)/3 = 13/3

6 0
2 years ago
Write the equation of the line in fully simplified slope-intercept form.
Bad White [126]

Answer:

y = -\frac{2}{5} x-6

Step-by-step explanation:

1) First, find the slope of the line. Use the slope formula m =\frac{y_2-y_1}{x_2-x_1}. Pick two points on the line and substitute their x and y values into the formula, then solve. I used the points (-5,-4) and (0,-6):

m = \frac{(-6)-(-4)}{(0)-(-5)} \\m = \frac{-6+4}{0+5} \\m = \frac{-2}{5} \\  

So, the slope of the line is -\frac{2}{5}.

2) Next, use the point-slope formula y-y_1 = m (x-x_1) to write the equation of the line in point-slope form. (From there, we can convert it to slope-intercept form.) Substitute values for the m, x_1 and y_1 into the formula.

Since m represents the slope, substitute -\frac{2}{5}  in its place. Since x_1 and y_1 represent the x and y values of one point on the line, pick any point on the line (any one is fine, it will equal the same thing at the end) and substitute its x and y values in those places. (I chose (0,-6), as seen below.) Then, with the resulting equation, isolate y to put the equation in slope-intercept form:

y-(-6) = -\frac{2}{5} (x-(0))\\y + 6 = -\frac{2}{5} x\\y = -\frac{2}{5} x-6

6 0
3 years ago
The points (-7,-1) and (-8,6) fall on a particular line. What is its equation in point-slope form?
Arisa [49]

Answer:

y - 6 = -7(x + 8)

Step-by-step explanation:

Slope: m = (y2-y1)/(x2-x1) = (6 - -1)/(-8 - -7) = (6 + 1)/(-8 + 7) = 7/-1 = -7

Point-slope form: y - 6 = -7(x - -8)

=> y - 6 = -7(x + 8)

3 0
2 years ago
Other questions:
  • What solid figure has 4 faces 6 vertices
    11·2 answers
  • A car factory can build 14 cars in 4 hours. <br><br> How many cars can it build in 7 hours?
    13·1 answer
  • What is the solution to the linear system of equations?​
    14·1 answer
  • 6. Find the mode of the set of data: 55, 56, 45, 51, 60, 53, 63, 70, 62, 58, 63
    14·2 answers
  • The ratio of the lengths of the sides of a triangle ABC is 3:4:6. M, N, and K are the midpoints of the sides. Perimeter of the △
    9·1 answer
  • Please please please I need HELP !
    15·1 answer
  • This problem has been solved!See the answerA municipal bond service has three rating categories (A, B, and C). Suppose that in t
    11·1 answer
  • The vertex of a function is (-3, 0) and is a minimum. What is the axis of symmetry and how is it determined?
    15·1 answer
  • The question is "You are skiing on a mountain with an attitude of 1200 feet. The angle of depression is 21°. Find the distance x
    15·1 answer
  • For what values of k
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!