Hello,
There is a mistake: it is 816 cm² !!! (an area)
length are multiplied by 2,
so area are mutiplied by 2²=4
Area B=816*4=3264 (cm²)
To get a decimal form of a fraction, divide the numerator by the denominator.
7/8 = 0.875
Answer:
There can be many possibilities
Possibilities:
one<u> </u><u>possibilities</u> that is perfect according to me is:-
15questions of 2 points
15×2=30 points
.
.
10questions of 3 points
10×3=30 points
.
.
Total =30+30=60 points
.
.
Hope it helped you
lf not then I am sorry for this.
Bye
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Good evening
Good night
17 $ because I added and then times everything
See how the arithmetic sequence is made:
5, 5+4=9, 9+4=13, 13+4=17, ...
So the 21th term will be:
5( first term)+20( n-1 term)•4= 85
And the sum of the first 21 is :
21(5+85)/2= 21•45= 945
