Sketch the graph of 4x² + 25x – 21 = y using your graphing calculator. What are the x-intercepts of this graph
1 answer:
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Answer:
B. No.
Step-by-step explanation:
We have been given 3 side lengths 7 ft, 12 ft, 17 ft. We are asked to determine, whether the given set of lengths can form a right triangle or not.
We will use Pythagoras theorem to solve our given problem, which states that the square of hypotenuse of a right triangle is equal to the sum of squares of two legs of right triangle.
Since the sum of squares of both legs is less than square of hypotenuse, therefore, the given set of lengths can not be the side lengths of a right triangle.
Answer:
None of the expression are equivalent to
Step-by-step explanation:
Given
Required
Find its equivalents
We start by expanding the given expression
Expand 49
Using laws of indices:
This implies that; each of the following options A,B and C must be equivalent to or alternatively,
A.
Using law of indices which states;
Applying this law to the numerator; we have
Expand expression in bracket
Also; Using law of indices which states;
becomes
This is not equivalent to
B.
Expand numerator
Using law of indices which states;
Applying this law to the numerator; we have
Also; Using law of indices which states;
=
This is also not equivalent to
C.
Using law of indices which states;
This is also not equivalent to