4. Which statement is true about the values of two expressions below? Expression A: 3x(8+4)

Expression B. 8+4

A. The value of expression B is 3 times the value of expression A.

B. The value of expression A is 3 times the value of expression B.

C. The value of expression A 3 times more the value of expression B.

D. The value of expression B is 3 times more than the value of expression A.
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Both B and C should be correct

Step-by-step explanation:

I'm assuming the x in Expression A is a multiplication symbol. If it is not, please tell me and I will change my answer.

Expression B has the value of 8+4 or 12.

Expression A is 3 times (8+4). You could also say that Expression A is 3 times Expression B.

Since both answer B and C say this, they should both be correct.  

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

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