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3 years ago

Please help me just with 8 and #9.

Mathematics

1 answer:

frosja888 [35]3 years ago

6 0

8) The angles of an octagon are 135 degrees and since they're divided in the middle the angle measures are 67.5.
So 180-67.5-67.5=45 so the measure of the inner degree of each small triangle is 45. There are 3 triangles between points T and P (going clockwise) so its 45(3) is 135 degrees. Your answer is 135 degrees
9) There are 5 triangles between U and I (going counterclockwise) so its 45(5) which is 225

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Please I need someone to help my assignment

Nadusha1986 [10]

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4 0

3 years ago

3. What are the factors of<br> 9x2 - 30x + 25?

vaieri [72.5K]

{(3x)}^{2}-2(3x)(5)+{5}^{2}

−2(3x)(5)+5

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3 years ago

Zaid and Matias, two farmers, constructed a 792 foot fence around their very large garden. Zaid agreed to construct 20% more of

likoan [24]

Answer:

$1.2x +x =792$

$2.2x =792$

And we got finally:

$x =\frac{792}{2.2}= 360 ft$

And the amount for Zaid would be 1.2*360 ft= 432ft

So then Zaid construc 432 ft and Matias 360 ft

Step-by-step explanation:

For this case we know that Zaid and Matias, two farmers, constructed a 792 foot fence around their very large garden so then the total is represented by 792 ft

We also know that Zaid agreed to construct 20% more of the fence than Matias did. Let's assume that the amount that construct by Matias was x then the amount constructed by Zaid would be 1.2 x representing 20% more than Matias and we can set up the following equation:

$1.2x +x =792$

$2.2x =792$

And we got finally:

$x =\frac{792}{2.2}= 360 ft$

And the amount for Zaid would be 1.2*360 ft= 432ft

So then Zaid construc 432 ft and Matias 360 ft

7 0

4 years ago

The hour hand of a clock moves −30° every hour. How many degrees does it move in 2&1/5 hours?

ad-work [718]

Answer:

ok is very easy

Step-by-step explanation:

so 1/5 of an hour is 12 mins

and 2 is 2 hrs so that 120 mins

now add 120+12=132

132 x -30 degrees

The answer to that is 132 x -30 =

-3960 sorry if its wrong and if you get a second try put -69.1150384 rad

I think sorry if you get it wrong have a good day

6 0

3 years ago

Pleeasee help this is khan academy :(

Dahasolnce [82]

Answer:

1/2

Step-by-step explanation:

hope this helps

6 0

3 years ago

Read 2 more answers