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just olya [345]
2 years ago
13

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:
n200080 [17]2 years ago
6 0

Answer:

5 - (1 + 20) = yx

Step-by-step explanation:

So if 5ft is the original height, we would need to distribute that to decrease in the following years. That is where the 5 - comes from. Next we know that is it is eroding 1 foot in 20 years so that is 5- (1+20) You HAVE to distribute that and not add. Then it equals y the height of the dune in x, the years. Honestly 5 feet above sea level is kinda puny for a sand dune ;P.

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Two friends went fishing on a lake. One friend's lure went 23 feet below the lake's surface, while the other friend's lure sank
serg [7]

Answer:

Distance = 58\ feet

Step-by-step explanation:

Represent the lure's difference with A and B;

A = 23\ feet

B = 81\ feet

Required

Determine the difference in depth between the lure's depth

The distance is calculated as follows;

Distance = B - A

Substitute 23 feet for A and 81 feet for B

Distance = 81\ feet - 23\ feet

Distance = 58\ feet

<em>Hence, the distance between both lure's is 58 feet</em>

6 0
2 years ago
Function f is a linear function with an initial value of 17 and a rate of change of –3. Some values for the linear function g ar
tia_tia [17]

Answer:

g(x) exceed f(x) by 10 when x=5

Step-by-step explanation:

step 1

Find the equation of function f(x)

we know that

The initial value is the y-intercept of the linear function (value of y when the value of x is equal to zero)

so

b=17

The rate of change is equal to the slope

so

m=-3

therefore

f(x)=-3x+17

step 2

Find the equation of function g(x)

Let

A(0,-8),B(2,0)

Find the slope

m=(0+8)/(2-0)=4

b=-8 ----> point A

therefore

g(x)=4x-8

step 3

Find the value of f(x) and g(x) for x=5

f(5)=-3(5)+17=2

g(5)=4(5)-8=12

Find the difference

g(5)-f(5)=12-2=10

3 0
2 years ago
Which transformation of AB will produce a line segment A’B that is parallel to AB
tangare [24]

Answer:

Step-by-step explanation:

A

7 0
2 years ago
the ratio of the number of galleons to the number of galleys in the Spanish armada was 5:1 what missing information could be use
Ahat [919]
Either the amount of galleons or the galleys.

if given the amount of galleons, you can find the amount of galleys by dividing the number of given galleons by 5.

if given the amount of galleys, you can find the amount of galleons by multiplying the number of given galleys by 5.
7 0
2 years ago
Read 2 more answers
Which of the following are exterior angles? Check all that apply.
Helen [10]

An exterior angle of a triangle is an angle formed by one side of the triangle and the extension of an adjacent side of the triangle.

FACTS:

  • Every triangle has 6 exterior angles, two at each vertex.
  • Notice that the "outside" angles that are "vertical" to the angles inside the triangle are NOT called exterior angles of a triangle.

1. Angles 1, 5 and 6 are inteior angles of the given triangle.

2. Angle 3 is vertical to the interior angle 5.

3. Angles 2 and 4 are exterior angles of the triangle.

Answer: correct options are A and B.

7 0
2 years ago
Read 2 more answers
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