12a $12a^(2) -20a+16a^(3)$

Answers

Answer 1

Answer:

Step-by-step explanation:

4a(3a-5+4a^2)

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Find the value of y in the diagram.

Answers

Answer:

6.3

Step-by-step explanation:

y/9=7/10

cross multiply

10y=63

y =6.3

Put these in order of size, smallest first 0.1. 30% 1/5

Answers

well put it in percentage
so you know 30 % is the same so then do
0.1 and that is 1/10 and that is also 10/100
also there is 1/100 is out of 100 %
so that means that 0.1 is 10 %
and 1/5 is the same as 2/10 and the same as 20/100 also the same as 20%
so the oder is 0.1 , 1/5 , 30%

0.1 1/5 30%

I hope this helps. If doesn't please tell me :)

Is the following statement with or without variability? "The number of students in PE each day"

Answers

the following statement is with variability

Emma is debating whether to use a straightedge and compass or a computer drawing program to complete a construction of a square inscribed in a circle. Which method do you think would take the longest to complete the construction and why?

Answers

Using a straightedge and compass will take the longest because Emma will have to work out the measurements herself and draw each inscribed triangle. Using a computer programme, the computer will do it for her and the results will definitely be accurate.

Answer:

Step-by-step explanation:

Using technology takes longer. Using a straightedge and a compass just requires you to find the circles bisector which takes no time at all. Using technology requires you to have a circle with a center point and a radius as AB, then you draw connecting lines, make intersections, draw point E on the segment DB, follow the entire perpendicular line construction that requires two additional circles and then in the end you’ll have BHDI as a square.

3. Given the following functions f(x) and g(x), solve f[g(7)] and select the correct answer below:f(x) = 4x + 21

g(x) = 2x + 2

16
49
85
784