Solve 3x2 – 18x + 5 = 47 for x.
2 answers:
Answer:
x = 3 +√23 and x = 3 - √23
Step-by-step explanation:
The given equation 3x^2 -18x +5 = 47
This can be written as 3x^2 -18x + 5 - 47 =0
3x^2 -18x - 42 = 0
Here we have to use the quadratic formula.
x =
From the given equation, a = 3, b = -18 and c = -42
Plug in these values in the above formula, we get
x =
x =
Simplifying the above expression, we get
x = 3 +√23 and x = 3 - √23
Hope this will helpful.
Thank you.
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Answer: The area of the triangle is 24 square inches
Step-by-step explanation:
Hi, since the 2 triangles form a parallelogram ( see attachment) we have the base and height of the triangles, we have to apply the next formula:
Area of a triangle; (base x height) /2
Replacing with the values:
A = (8x6 )/2
A = 48 /2
A = 24 square inches
The area of the triangle is 24 inches
Feel free to ask for more if needed or if you did not understand something.
