The coefficient of the second term is 18.
What you do is you FOIL the terms:
What you do is you FOIL the terms:
Evaluate the expression b2- 15 if b=9
2 answers:
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Answer:
Step-by-step explanation:
From the picture attached,
a). Triangle in the figure is ΔBCF
b). Since, and
are the parallel lines and m is a transversal line,
m∠FBC = m∠BFG [Alternate interior angles]
Since, and
are the parallel lines and n is a transversal line,
m∠BCF = m∠CFE [Alternate interior angles]
By triangle sum theorem in ΔBCF
m∠FBC + m∠BCF + m∠BFC = 180°
From the properties given above,
m∠BFG + m∠CFE + m∠BFC = 180°
m∠GFE = 180°
Therefore, angle GFE is the straight angle that will be useful in proving that the sum of the measures of the interior angles of the triangle is 180°.
Answer:
Step-by-step explanation:
We can simplify the expression under the root first.
Remember to use
Thus, we have:
We know 4th root can be written as "to the power 1/4th". Then we can use the property
<em>So we have:</em>
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<em>Option D is right.</em>