MATHEMATICS HIGH SCHOOL

What is the fraction twelve twentieths in it's simplest form

Answers

Answer 1
Answer: We start with 12/20. Half both numbers = 6/10. Half again = 3/5.
Because 3/5 are both odd numbers and can't be made smaller without using decimals (which you don't want to use within a fraction), 3/5 is the simplest form for this fraction.
Answer 2
Answer: 12/20 can be simplified by factoring out the ones exg
4/8=1/2 because 4/8=1/2 times 4/4 and 4/4=1

so find factors of 12 and 20
12=2 times 2 times 3
20=2 times 2 times 5
there is 2 times 2 that is common to both so
(note: 2*2 means 2 itmes 2)
12/20=(2*2)/(2*2) times 3/5=1 times 3/5=3/5
the simplest form is 3/5

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What is the area of this regular polygon?A.311.15 m2

B.
622.3 m2

C.
3034.5 m2

D.
6069 m2

Answers

the right answer is C.  what you have been given is base length and height for the seven triangles included in this geometric shape as you can see there are seven sides, and thus seven triangles in the entire heptagon. the formula will be: (base(height)/2)(7)= the area of the heptAGON.  Area=the area of each of the triangles within the heptagon. since they all have the same dimensions, your equation will be (30*28.9/2)*7
In this shape you can form a triangle with a height of 30 and a base of 28.9
Area for this triangle would be A=(1/2)(28.9)(30) which is 433.5

Since this shape has 7 sides you can make 7 of these same triangles so you will have 7 triangles with the same area of 433.5

so take 433.5*7 to get 3034.5 which is answer "C"

What's 17⁄12 as a mixed number? A. 1 5⁄12
B. 1 12⁄7
C. 1 7⁄12
D. 7 1⁄2

Answers

You need to simplify. 12 goes into 17 once so it is defiantly not D. 17-12=5, so it is A.

Which polynomial can be simplified to a difference of squares? 10a2 + 3a – 3a – 16 16a2 – 4a + 4a – 1 25a2 + 6a – 6a + 36 24a2 – 9a + 9a + 4

Answers

16a² - 4a + 4a - 1 can be simplified to a difference of squares:

16a² - 4a + 4a - 1 =
16a² - 1 =
(4a)² - 1² = 
(4a-1)(4a+1)

Answer:

2.16a^2-4a+4a-1

Step-by-step explanation:

We have to find the polynomial can be simplified to a difference of squares.

1.10a^2+3a-3a-16

Combine like terms

10a^2-16

10 in 10a^2 is not a perfect square number  because when a number end with one zero then the number is not perfect square number.

Therefore, it can not be simplified to a difference of squares.

2.16a^2-4a+4a-1

16a^2-1

Combine like terms

(4a)^2-(1)^2

Hence, the polynomial can be simplified as difference of squares.

3.25a^2+6a-6a+36

Combine like terms

25a^2+36

(5a)^2+(6)^2

Hence, the polynomial can not be simplified as  difference of squares because the polynomial can be  simplified as sum of squares.

4.24a^2-9a+9a+4

Combine like terms

24a^2+4

24a^2+(2)^2

24=2* 2* 3* 2

24 is not  a perfect square number because  when factorize 24 then 2 and 3 are not paired.

Hence, the polynomial can not be simplified as difference of squares.

If you leave your house at 1:00 and get to your friends house at 5:00, what was your average speed

Answers

The answer is 4 miles per hour

9 cm ÷ 10 = how many mm

Answers

9 cm = 90 mm

90 mm / 10 = 9 mm

Hope this helps! 

Eric runs every day. He can run 5 miles in 50minutes. What is the unit rate that Eric runs in
one minute?

Answers

Answer:

10

Step-by-step explanation:

If he runs 50 minutes 50 divided by 5 is 10
0.1 mile in 1 minute
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