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koban [17]
3 years ago
7

A sand dune stands 5 feet above sea level. The hill is eroding at a rate of 1 foot per 20 years. Let y represent the height of t

he sand dune after x years. Which equation represents the situation?
Mathematics
1 answer:
Over [174]3 years ago
6 0
The given 5 feet above sea level could be taken as the y-intercept, while the rate of -1 foot per 20 years could be taken as the slope. The height y is a function of time. Using y-intercept slope form of a line: Y = (-1/20)t + 5
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X 2 4 8 10 16<br> Y12 45<br> 09<br> Oy= 2 x<br> Oy=1 x<br> O y=x-1<br> Oy=x+2
MrRa [10]

Answer:

<em>y = x ÷ 2</em>

Step-by-step explanation:

We are given a table of values, which will be represented as ordered pairs (x,y) below:

(2,1) (4,2) (8,4) (10,5) (16,8)

We are required to select one of the functions that match the numeric relationship between x and y.

We could test them one by one, but at simple observation, we can note the values of y are half of the values of x:

2/2=1

4/2=2

And so on. Thus the only function that divides the value of x by 2 to find the value of y is:

y = x ÷ 2

6 0
3 years ago
Tyler randomly pulls a colored marble from a bag of mixed colored marbles. He puts the marble back in the bag. He then pulls out
nadezda [96]
 Brainliest? The outcome of the second selection is not affected in any way by the outcome of the first selection. Therefore the events are independent.
6 0
3 years ago
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The length of the red line segment is 6, and the length of the blue line segment is 4. how long is the major axis of the ellipse
juin [17]

An ellipse is divided into two axes, the longer axis is the major axis and the shorter axis is the minor axis. The length of the major axis of an ellipse is equal to the sum of two distance: the distance between any point on the ellipse and one on focus and the distance between the same point and the other focus. The focus is the point that helps define an ellipse and every ellipse has two foci. These two distance are also called the red line segment and blue line segment. Given 6 for red line segment and 4 for blue line segment therefore, the length of the major axis of the ellipse is 10.

3 0
3 years ago
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What number raise power 3 is 729
hram777 [196]
3^x = 729
log(3^x) = log(729)
xlog(3) = log(729)
x = log(729)/log(3)
x = 6
5 0
3 years ago
Find the midpoint of A and B where A has coordinates (-5, 3)<br> and B has coordinates (3,-1)
yaroslaw [1]

Answer:

(-1, 1)

Step-by-step explanation:

Midpoint formula: (x₁ + x₂/2 , y₁ + y₂/2)

Substitute the values into the formula.

(-5 + 3/2 , 3 - 1/2)

(-2/2 , 2/2)

(-1,1)

Therefore, the midpoint is (-1, 1).

5 0
3 years ago
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