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solniwko [45]
2 years ago
15

Please help me add an explanation too pls

Mathematics
1 answer:
Elanso [62]2 years ago
8 0

Answer:

42.5 inches

Step-by-step explanation:

because you gotta divide 349 by 8 to get ye height

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What is the insverse of the function f(x) =2x+1?
goldenfox [79]
F(x) = 2x + 1

To find the inverse of a function you just need to switch the x by y or vice-versa:

-> y = 2x + 1
-> x = 2y + 1

After that you isolate the y again:

-> 2y = x - 1

-> y = (x-1)/2
-> f^-1 (x) = (x-1)/2

Answer:
f^{ - 1} (x) = (x - 1) \div 2
5 0
3 years ago
Use these functions to answer the questions.
Elenna [48]
Part A
We have f\left(x\right)=\left(x+3\right)^2-1. To solve for the x-intercept, we set f(x) equal to 0.  That is
     \left(x+3\right)^2-1=0

     \left(x+3\right)^2=1

Take the square root of both sides, 
     x+3=1

     x=-2

The x-intercept is (-2,0). 

To solve for the y-intercept, we set x=0. That is 
     y=\left(0+3\right)^2-1=3^2-1=9-1=8

The y-intercept is (0, 8) 

The coordinates of the optimum point are actually the vertex which can be easily seen from the vertex form equation given above. The minimum point is (-3, -1).

Part B.
We have g\left(x\right)=-2x^2+8x+3.
Factor out -2
     =-2\left(x^2-4x\right)+3

Complete the square
     =-2\left(x^2-4x+4\right)+3-2\left(4\right)

Simplify
     g(x)=-2\left(x-2\right)^2-5

Part C
We have h\left(t\right)=-16t^2+28t.
The maximum height is 12.25 feet after 0.875 seconds from the time of the jump. The dolphin will be back in the water after 1.75 seconds. The graph of the jump is shown in the photo. 
     
    

4 0
3 years ago
Will give brainlist if its right!
Genrish500 [490]

Answer:

7/30

Step-by-step explanation:

or 7 out of thirty.

plz correct me if im wrong, ill fix it

3 0
3 years ago
Read 2 more answers
Find the percent of each number 6% of 38
blondinia [14]
2.28 is the answer I got

first I divided 6 by 100

then multiplied that by 38 and that's how I got 2.28
3 0
3 years ago
Find the distance between the two points rounding to the nearest tenth (if necessary),
Nastasia [14]

Answer:

13

Step-by-step explanation:

3 0
3 years ago
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