Answer:
x = -1
Step-by-step explanation:
The usual approach to these is to square the radicals until they are gone.
Each time the equation is squared, the possibility of an extraneous root is introduced. Here, x=3 is extraneous: it does not satisfy the original equation.
The solution is x = -1.
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Using a graphing calculator to solve the original equation can avoid extraneous solutions. The attachment shows only the solution x = -1. Rather than use f(x) = 2, we have rewritten the equation to f(x)-2 = 0. The graphing calculator is really good at showing the function values at the x-intercepts.
LOOK AT A PICTURE FIRST, you might be confused if you read this first.... I think the easiest way to figure it out is to search on google, and just look at google images... but a tape diagram (from what I can see) is best used in a situation with a ratio. you draw out the ratio, such as 5:3 (which is from the picture I'm looking at) and then, than add up the ratio, divide it from the total they give you, thus giving you the amount each section of the tape is worth, than multiply that by the numbers of the ratio given....
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The weight of the rectangle is 80 grams.
The weight of the triangle is double the weight of the
circle.
Determine the weight of the circle.
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Rectangle has four sides. The total weight of the circle is 20 grams.
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What is a rectangle?
A rectangle is a 2D shape that has four sides, and the pair of opposite sides are equal and parallel to each other.
As it is given that the weight of the rectangle is 80 grams, and a rectangle is made up of two triangles. Therefore, the weight of each triangle can be written as,
It is given that the total weight of the triangle is double the weight of the circle. therefore, the relationship can be written as,
Hence, the total weight of the circle is 20 grams.
Learn more about Rectangle:
brainly.com/question/994316
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Slope=-1.8, X=-0.5, y=1.9
Equation is y^2-y^1=m(x^2-x^1).
Y-1.9=-1.8(X-(-0.5))
Y-1.9=-1.8x+0.90
Add 1.9 on both sides.
Y= -1.8x+1.
I hope this helps you.
The figures with a 180° rotation symmetry is B C and E.