How many solutions does this equation have? a + 3 + 2a = -1 + 3a + 4
2 answers:
Answer: There are infinitely many solutions of this equation.
Step-by-step explanation:
The given equation :
First we try to solve the above equation by combining the like terms (by reordering them), we get
Subtracting 3a from both sides (by using subtracting property of equality), we get
, which is absolutely a correct fact.
That means, the equation has infinitely many solutions as a can take any real value .
Thus , there are infinitely many solutions of this equation.
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Answer:
The approximate length of the diagonal walkway is 21.21 meters
Step-by-step explanation:
we know that
Applying the Pythagorean Theorem in the square park, find out the the approximate length of the diagonal walkway
so
where
c is the diagonal of the square
a and b are the length sides of the square
we have
substitute
therefore
The approximate length of the diagonal walkway is 21.21 meters
Answer:
≈39.27 units
Step-by-step explanation:
To find the area of a semi circle, you use the formula for finding the area of a circle, which is , and then you divide that by 2 since it is half of a circle.
In this case, ≈ 78.54
= 39.27