What is the value of the expression?
[(1+5)⋅2−5]⋅2
enter your answer in the box.

Step-by-step explanation:

To find the value of expression, first you have to use order of operations and stands for parenthesis, exponents, multiply, divide, add, and subtract the numbers from left to right.

First, parenthesis.

Then, multiply numbers from left to right.

Subtract numbers from left to right.

Multiply & divide from left to right.

Therefore, the correct answer is 14.

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.