Whatt does the square root symbol with 47 lie with a scale from 1 to 10

Mathematics

1 answer:

Aneli [31]3 years ago

8 0

Roughly 7.84 or so. You can mark it somehwere between 7.5 and 8 on a number line

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Verify that QT is Parallel to RS using the triangle proportionality theorem.

alexdok [17]

The triangle proportionality theorem is

If a line parallel to one side of a triangle intersects the other two sides of the triangle, then the line divides these two sides proportionally.

So to prove QT parallel to RS, we have to show

$\frac{PQ}{QR} = \frac{PT}{TS}$

Substituting the values, we will get

$\frac{18}{38} = \frac{36}{80}
\\
0.47368421=0.45$

Which are not equal, therefore the lines are not parallel .

6 0

3 years ago

Solve the following absolute value inequality graphically: |x|-3>1.

Dovator [93]

Answer:

x < -4 ∪ x > 4

Step-by-step explanation:

The absolute value function is shifted down 3 units. The solution space is values of x where y = |x|-3 is greater than 1. The solution is shown in red in the attachments, and the left and right (dashed) sides of the inequality are shown in blue.

I personally prefer to rewrite the inequality so the comparison is to <em>zero</em>. That is done in the second attachment, which rewrites it to ...

|x| -4 > 0

by subtracting 1 from both sides. It is often easier to read the values of x-intercepts than it is to read the coordinate values where lines cross each other.