Equivalent expressions are expressions that have the same value.
The equivalent expression of
is: 
The expression is given as;

Apply law of indices to change the exponents

Express as products

Rewrite as

Hence, the equivalent expression is: 
Read more about equivalent expressions at:
brainly.com/question/24242989
Answer:
Approximately 149 cubic centimeters of water
Step-by-step explanation:
step 1
Find the volume of water in the tank
The volume of a rectangular prism is equal to

we have

substitute

step 2
Find the volume of the cylindrical container
The volume of the cylinder is equal to

we have
---> the radius is half the diameter


substitute


step 3
To find out how much water is still in the tank, subtract the volume of 10 containers of water from the volume of the tank
so

therefore
Approximately 149 cubic centimeters of water
31. t= 10/9
43. x= -1/14 (the “-“ can go either on the top or bottom)
45. z= 0.21
Answer:
right triangle
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
it may not be right because i guessed