If AC =15 how long is ED? Help me :(
2 answers:
Answer:
7.5
Step-by-step explanation:
Using similar triangles.
Answer:
ED=7.5
Step-by-step explanation:
ΔABC is similar to ΔDEB (they share ∠B, and ∠C=∠D and ∠A=∠E because corresponding angles), so their sides are in ratio:
ED/AC=BD/BC
We can see that BC is twice BD (marked), so we know BD/BC=0.5
ED/AC=BD/BC
ED/15=0.5
ED=7.5
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We learned this in the sixth grade, give me a sec till I get my text book
Step-by-step explanation:
Z²=x³
Z²=9³
Z= √9³
Z= 27
Answer:
11679
Step-by-step explanation:
Increased by 229
First you need to find the 2%
So to find the 2%
2/100 * 11450=229
Now add 11450+229= 11679
By definition of conditional probability,
P(B | A) = P(A ∩ B)/P(A) = (13/25) / (13/20) = 20/25 = 4/5
