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oee [108]
3 years ago
11

A coastal geologist estimates that a certain country's beaches are

Mathematics
1 answer:
andre [41]3 years ago
3 0
21/1.5=14

14 years to erode
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Find the slope of the line.
cricket20 [7]
Your slope would be -1/4x. If you look at the y-intercept on your graph, which is -2, you would start to count up one box and over 4 boxes to the left. We call this rise/run. So knowing what the slope is now, your entire equation would be            y= -1/4x - 2. (Also, if the line is going up towards the left it is a negative slope, if it's to the right it is positive.) I hope this helps love! :) 
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3 years ago
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Simlplify the expression 52^-5 then write it as a repeated multiplication
Soloha48 [4]
Exponent rule : a^-b = 1 / a^b

52^-5 = 
1 / 52^5 =
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6 0
3 years ago
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Ierofanga [76]

Answer:what am I doing

Step-by-step explanation:

3 0
3 years ago
Which product is negative?
Elden [556K]

Answer:

Second answer

Step-by-step explanation:

first answer: 4 negative numbers  multiplied = 2 postive numbers multipled = 1 positive number

second answer: 3 negative numbers multiplied = 1 positive number multiplied by 1 negative number = 1 negative number

third answer: Negative and positive numbers multiplied by zero = 0

fourth answer: 2 negative numbers multiplied by 2 positive numbers = 1 positive number multiplied by 1 positive number = positive number.

8 0
3 years ago
The sum of the lengths of two opposite sides of the circumscribed quadrilateral is 12 cm, the length of a radius of the circle i
Vikki [24]

Answer:

  24 cm²

Step-by-step explanation:

We assume that is a circumscribing quadrilateral, rather than one that is circumscribed. It is also called a "tangential quadrilateral" and its area is ...

  K = sr

where s is the semi-perimeter, the sum of opposite sides, and r is the radius of the incircle.

  K = (12 cm)(2 cm) = 24 cm²

_____

A quadrilateral can only be tangential if pairs of opposite sides add to the same length. Hence the given sum is the semiperimeter.

5 0
3 years ago
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