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Alona [7]
3 years ago
13

Find the mean of the data in the dot plot below. students Size of each of Mr. Sirac's classes + + + + 21 20 22 23 24 25 26 28 27

Number of students Show Calculator Report a Stuck? Watch a video or use a hint.​
Mathematics
1 answer:
ahrayia [7]3 years ago
3 0
Ok the answer is b i hope that helps!!
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Let f(x) = x/(x-6). Find a function y=g(x) so that (f o g)(x)=2x.
earnstyle [38]
Solve as a simultaneous equation maybe?
 f(x) + g(x) = 2x or                            x/(x-6) + y =2x
and then solve so it becomes          2x^2 + 5x =y
  then factorise into brackets or use quadratic formula
5 0
3 years ago
(x2 + 4x2 + x3 + x) + (x3 + x + 5x + 5)
yuradex [85]

Answer:

2x³+5x²+7x+5

Step-by-step explanation:

(x² + 4x² + x³ + x) + (x³ + x + 5x + 5)

(5x²+x³+x)+(x³+6x+5)

2x³+5x²+7x+5

3 0
3 years ago
The area of a rectangle is 38.25 square yards and its base is 9 yards. What is the height? Do not round your answer.
Romashka [77]

Answer:

4.25 yards

Step-by-step explanation:

Area of rectangle = Base x Height

or

Height = Area of Rectangle ÷ Base

In this case, Area =38.25 sq yards and Base = 9 yards

Height = 38.25 ÷ 9 = 4.25 yards

3 0
3 years ago
Read 2 more answers
In ΔVWX, v = 390 inches, w = 390 inches and x=500 inches. What is the sum of ∠Vand∠W?
Stolb23 [73]
The answer would be 390+ 390 =780
6 0
2 years ago
6.1+<br> 4.55+<br> 1.09 +<br> 15.9+<br> 3.771
Scrat [10]

Answer:

31.411

Step-by-step explanation:

6.1+4.55+1.09+15.9+3.771= 31.411

5 0
2 years ago
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