She needs to move the decimal point, not just add 0's
Only <span>first and second place runners:
</span>11*10=110 ways
Hope that helped.
Answer:C 5a^2 +70a +240
Step-by-step explanation:
Answer:
23. x = 4; DE = 44
24. x = 25; DS = 28
Step-by-step explanation:
23. Point S is the midpoint of DE, so ...
DS = SE
3x +10 = 6x -2
12 = 3x . . . . . . . . . add 2-3x
4 = x . . . . . . . . . . . divide by 3
Then DS has length ...
DS = 3x +10 = 12 +10 = 22
and DE is twice that length, so ...
DE = 44
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24. DS is half the length of DE, so is ...
DS = DE/2 = 56/2
DS = 28
Then x can be found from ...
DS = x +3
28 -3 = x = 25 . . . . . substitute value for DS
_____
<em>Comment on problem 24</em>
Sometimes it is easier to work parts of a problem out of sequence. Here, finding DS first makes finding x easier.
Answer:
The answer is 94.8 m
Step-by-step explanation:
Area of a square is a²
So, 23.7² = 561.69 m²
The side of the square is equal to 23.7 m
Perimeter of a square is the side multiplied by 4
So we have that 23.7 x 4 = 94.8 m
