ABD similar to ECD by SAS similarity postulate
answer is D.
Answer:
B) 
D) 
Step-by-step explanation:
Given expression:

To find the equivalent expression.
We will evaluate each expression in the given choices to check the equivalence.
A) 
Using distribution.
⇒ 
⇒ 
B) 
Using distribution.
⇒ 
⇒ 
C) 
Using distribution.
⇒ 
⇒ 
D) 
Using distribution.
⇒ 
⇒ 
E) 
Using distribution.
⇒ 
⇒ 
From the choices evaluated, we find that the expressions in choices B and D are equivalent
Answer:
从 1 到 20 有 8 个素数。它们列在下面:2、3、5、7、11、13、17 和 19。
10:12, it can also be written as 5:6 though if you have to simplify it.
It's already in scientific notation form;
Answer of your question,
3x+46 = 10x-80
7x = 34
x = 4.85