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Leona [35]
3 years ago
6

Use the equation and type the ordered-pairs.

Mathematics
2 answers:
s2008m [1.1K]3 years ago
6 0

Answer:

The given equation , in two variables is

   y= log 3 x

Ordered pair is written in the form of ,(x,y).

1. x=\frac{1}{3}, y=\log 3 \times\frac{1}{3}\\\\ y=\log 1 \\\\ y=0\\\\2. x=1, y=\log 3 \times 1\\\\y=\log 3\\\\ 3. x=3, y=\log 3 \times 3\\\\ y=\log 3^2\\\\ y=2\log 3\\\\4. x=9=3^2, y=\log 3 \times 9\\\\ y=\log 3^3\\\\ y=3\log 3 \\\\5.  x=27=3^3, y=\log 3 \times 3^3\\\\ y=\log 3^4\\\\ y=4\log 3\\\\6. x=81=3^4, y=\log 3 \times 3^4\\\\ y=\log 3^5\\\\ y=5\log 3

Sophie [7]3 years ago
3 0
If it is y = love 2x:

 <span>y = log_2 (x) =====> when x = 1/2 
y = log_2 (1/2) 
y = -1 ======> (1/2 , -1) 

y = log_2 (x) =====> when x = 1 
y = log_2 (1) 
y = 0 ======> (1 , 0) 

y = log_2 (x) =====> when x = 2 
y = log_2 (2) 
y = 1 ======> (2 , 1) 

y = log_2 (x) =====> when x = 4 
y = log_2 (4) 
y = 2 ======> (4 , 2) 

y = log_2 (x) =====> when x = 8 
y = log_2 (8) 
y = 3 ======> (8 , 3) 

y = log_2 (x) =====> when x = 16 
y = log_2 (16) 
y = 4 ======> (16 , 4) </span>
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A student raises her grade average from a 75 to a 90. What was the percent of increase in the student’s grade average? Round you
Zigmanuir [339]
=(new-old)/old *100%
=(90-75)/75 *100%
=20%
<span> hope it helps</span>

5 0
3 years ago
5x+3-2x-2=4 solve for x
mrs_skeptik [129]

Answer:

x=1

Step-by-step explanation:

(5x+−2x)+(3+−2)=4

3x+1=4

3x=3

x=1

6 0
3 years ago
Read 2 more answers
The height of a triangle is 8ft greater than the base. The area of the triangle is 136.5 square ft. Find the length of the base
mixer [17]

Answer:

the base is 9/2 ft and the height is 9/2 + 8, or 25/8, ft.

Step-by-step explanation:

Note that the formula for the area of a triangle is A = (1/2)(base)(height).  Let's abbreviate that to A = (1/2)(b)(h).   We are told that h = b + 8.

Then A = 136.5 = (1/2)(b)(b + 8), or

               (after multiplying both sides by 2)

          A = 273 = b^2 + 8b

                which, when put into standard quadratic form, becomes:

b^2 + 8b - 273 = 0

The coefficients of this quadratic are a = 1, b = 8 and c = -273.

Thus, the discriminant is b^2 - 4ac, or 64 - 4(1)(-273) = 1156 = 17^2.

The roots are then

      -8 ± √1156            -8 ± 17

x = --------------------  =  ------------ = 9/2 and -25/2

              2                          2

Only the root 9/2 makes sense here, because measurements of length are positive.

Thus, the base is 9/2 ft and the height is 9/2 + 8, or 25/8, ft.

3 0
4 years ago
The coefficient of x in the expansion of the following is (x+3)^3 a) 1 b) 3 c) 18 d) 27 e) 9
VashaNatasha [74]

Answer:

  d) 27

Step-by-step explanation:

The expanded form of (a+b)³ is ...

  (a +b)³ = a³ +3a²b +3ab² +b³

When we are expanding (x +3)³, the x-term is ...

  3(x)(3²) = 27x

The coefficient of x in the expansion is 27.

3 0
3 years ago
A class of 40 students took a test 20 students had an average score of 65. the other students had an average score of 52. what i
Korolek [52]

Answer:

One: 58.5

Two 36.6

Step-by-step explanation:

One

20 students * 65 = 1300 This is the total score of all 20 students. They may not all get 65, but 1300 is what their average total is.

20 students * 52 = 1040

The total score of all 40 students was 1300 + 1040 = 2340

The average for the entire class was 2340 / 40 = 58.5

Two

This question is done almost the same way.

Supposes the total number of members is 100. That means that 28 of them are men

28 * 33 = 924     This is the total age for the men

100 - 28 = 72        Out of 100, 72 of the people there are women.

72 * 38 = 2736

The total number of years of all of the members is

924 + 2736 = 3660      

The average age of all members is 3660/100 = 36.6

Why did I pick 100 as the total membership? It is because a percentage is number out of 100. Am I allowed to invent things like that? Sure. I'm just using the definition of a percentage.

The average will make it come out the same.

7 0
3 years ago
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