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3 years ago

Heyyy pls help w this ( used all my points )

Mathematics

2 answers:

Katyanochek1 [597]3 years ago

8 0

Answer:
1) 20
2) -3
3) x+18y
4) x=-18

OleMash [197]3 years ago

5 0

Answer:

hope this helps xx

Step-by-step explanation:

1.)20

2.) -3

3.) x+18y

4.) x=-18

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Y=90° by inspection
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3 years ago

PLEASE HELP ME WITH THIS ASAP AND SHOW WORK PLEASE

Shkiper50 [21]

<h2>Step-by-step explanation:</h2>

A: f(x)=8x-2

1. Switch the f(x) to y

y=8x-2

2. Switch y to x and x to y

x=8y-2

3. Solve for y:

------------------------------

1. Add 2 to both sides.

x=8y-2

+2 +2

2. Divide both sides by 8.

x+2=8y

--- ---

8 8

1/8x+1/4=y

3. Write in f-inverse form

f^-1(x)=1/8x+1/4

B: g(x)=2/3x+6

1. Switch the g(x) to y

y=2/3x+6

2. Switch y to x and x to y

x=2/3y+6

3. Solve for y:

------------------------------

1. Subtract 6 from both sides.

x=2/3y+6

-6 -6

2. Multiply both sides by 3/2 (to cancel out the 2/3)

x-6=2/3y

2/3x-4=y

3. Write in f-inverse form

g^1(x)=2/3x-4

C: h(x)-4x-12

1. Switch the h(x) to y

y=-4x-12

2. Switch y to x and x to y

x=-4y-12

3. Solve for y:

------------------------------

1. Add 12 to both sides.

x=-4y-12

+12 +12

2. Divide both sides by -4

x+12=-4y

------ ---

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2 years ago

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3 years ago

Make a frequency distribution and find the relative frequencies for the following number set. Round the relative frequency to th

Pani-rosa [81]

Solution: We have to find the Frequency and Relative frequency of the given data:

Frequency is the number of times a number occurs.

Relative Frequency is the number of times a number occurs divided by the total number of items.

Therefore, the frequency and relative frequency are calculated as below:

Number Frequency Relative Frequency

20 1 $\frac{1}{31} \times 100 =3.2\%$

21 4 $\frac{4}{31} \times 100 =12.9\%$

22 2 $\frac{2}{31} \times 100 =6.5\%$

23 4 $\frac{4}{31} \times 100 =12.9\%$

24 3 $\frac{3}{31} \times 100 =9.7\%$

25 2 $\frac{2}{31} \times 100 =6.5\%$

26 3 $\frac{3}{31} \times 100 =9.7\%$

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28 3 $\frac{3}{31} \times 100 =9.7\%$

29 4 $\frac{4}{31} \times 100 =12.9\%$

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omeli [17]

The initial value is -5

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3 years ago

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