The numerical value of this algebraic expression is 123
- Step-by-step explanation:
To solve this algebraic expression, we're going to subtract the numbers indicated in parentheses, and finally, we're going to multiply and <em>add </em>the numbers.
Therefore, we can conclude that the numeric value of this expression will be 123
Answer:
12.4
Step-by-step explanation:
rounded to 1dp
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X^2 - 49 = (x + 7)(x - 7) = x^2 - 7x + 7x = 49 = x^2 - 49
Step-by-step explanation:
Use triangle congruency:
BC=EC, AC=DC - Given
m∠DCE = m∠ACB because they are vertical angles
Therefore ΔABC ≅ ΔDEC because of Side-Angle-Side congruency
AB=DE because corresponding parts of congruent triangles are also congruent (CPCTC)
Answer: 15 - 2w 1.5, w 6.75
Step-by-step explanation: tHiS aNsWeR sEeMeD tHe MoSt PrAcTiCaL.
i HoPe ThIs HeLpEd!
