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rosijanka [135]
2 years ago
11

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

Mathematics
2 answers:
Julli [10]2 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]2 years ago
3 0

Answer:

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

Step-by-step explanation:


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The speed of light is approximately 1.86×10^5 miles per second.
OLga [1]
The answer is 360,000
6 0
3 years ago
I'm having trouble figuring out what the equation is for the trend line and what the slope is
Talja [164]

Answer:

The equation for the trend line would be y = -1/100x + 25

Step-by-step explanation:

In order to find the trend line, we first need to find the slope. To do so, we need to find two points on the line. The points we'll use are (0, 25) and (2500, 0). Next, we use the slope formula.

m(slope) = (y2 - y1)/(x2 - x1)

m = (0 - 25)/(2500 - 5)

m = -25/2500

m = -1/100

Now that we have this we can use the slope and the intercept in slope intercept form to model the trend line.

y = mx + b

y = -1/100x + 25

3 0
2 years ago
Use interval notation to express the following:<br> The set of all numbers less than 2.
AlexFokin [52]

Answer:

( - infinity, -3 ] [ -2, infinity )

square bracket means it includes the end point.

Step-by-step explanation:

(-∞, -3]U [-2,∞)

3 0
3 years ago
Write a mixed number and an improper fraction for the model below ​
Mariulka [41]

Answer:

2 and 3/4

11/4

Step-by-step explanation:

an improper fraction is any fraction with a numerator bigger then the denominator.

a mixed number is the "proper" version of an improper fraction.

the fraction 11/4 as a mixed number is 2 and 3/4.

to make an improper fraction a mixed number, find out how many times the denominator goes into the numerator. whatever you have left that didn't make 1 whole, turns into the fraction .

hope this helped

4 0
2 years ago
Can I get some help? I don’t understand this :/
DIA [1.3K]
Together they equal 90 degrees.
Equation:
(0.1x - 22) + (0.3x - 54) = 90
Open parenthesis and simplify:
0.4x -76 = 90
0.4x = 166
DIvide:
Your final answer is x= 415
Hope this helps!
4 0
3 years ago
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