Answer:
Step-by-step explanation:
As they are similar triangles,we can write
=
⇒=
⇒DE=15.8
The formula for the perimeter of a rectangle is P=2L + 2W, where L is the length and W is the width. A rectangle has a perimeter
1 answer:
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Answer:
s=-2
Step-by-step explanation:
Explanation in picture
Answer: 35
Step-by-step explanation:
Given : A bag contains four red marbles, two green ones, one lavender one, three yellows, and one orange marble.
Total = 4+2+1+3+1=11
To find sets of four marbles include none of the red ones, we need to exclude red marbles when we count the total number of marbles.
Then, the total marbles(exclude red) =11-4=7
Now, the combination of 7 marbles taking 4 at a time is given by :-
Hence, the number of sets of four marbles include none of the red ones = 35