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Vladimir [108]
2 years ago
9

Which of the following functions is graphed below?

Mathematics
1 answer:
Ghella [55]2 years ago
6 0
Selection A is appropriate.

_____
The black dot on the graph means that one of the regions of interest will be
  x ≤ 1

The y-intercept for the left branch of the graph is -4, so we khow that
  y = x³ -4, x ≤ 1
will be part of the function definition.
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A rectangular park measures 300ft by 400ft. A sidewalk runs diagonally from one corner to the opposite corner. Find the lunch of
saveliy_v [14]
When we are given a line cutting diagonally from one corner of a rectangle to the opposite corner, we are given two triangles.

300ft
____
| /|
| / |
| / |
| / |400ft
| / |
| / |
|/ |
-------

*not to scale

Now, using the right-angle trigonometry rule, we can find the hypotenuse (the diagonal line) which represents the footpath.

a^2 + b^2 = c^2

{where a is one side length, b is another side length, and c is the hypotenuse}

Thus, we make c the subject of the equation and substitute the other known values:

c^2 = 400^2 + 300^2
= 160,000 + 90,000
= 250,000

Now we move the 'squared' (^2) from the left hand side to the right hand side. When moving it across the equal sign (=) the result becomes the 'root' of itself:

c = _/250,000
= 500

Therefore, the length of the diagonal path is 500ft.
5 0
3 years ago
Find the arc length of the semicircle. 8
Ipatiy [6.2K]

Answer:

π×8² =

201.0619298297

arc length formular = π ×r²

4 0
3 years ago
Help ASAP! Need full rule
Ulleksa [173]
I dont know this one sorry
3 0
2 years ago
Can someone help me please
Trava [24]

Answer:

5n units

Step-by-step explanation:

C=2πr =2·π·2.5

5 0
3 years ago
The graph shows the number of calories Natalia burned while running.
Margaret [11]

Answer:

slope is y=10x.

Slope shows that she is consistently burning 10 calories per minute

Step-by-step explanation:

5 0
2 years ago
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