Factor completely 3x2 -21

Mathematics

1 answer:

Andrej [43]3 years ago

7 0

Answer:

=3(x^2 − 7)

Step by Step explanation:

3x^2 − 21

=3(x^2 − 7)

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2 years ago

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The outdoor furniture center buys wooden benches for $50 each. The furniture store owner adds a %200 markup to the cost of the b

vlada-n [284]

The answer is very simple:

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3 years ago

Please find the exact length of the midsegment of trapezoid JKLM with vertices J(6, 10), K(10, 6), L(8, 2), and M(2, 2). Thank y

I am Lyosha [343]

Answer:

the exact length of the midsegment of trapezoid JKLM = $\mathbf{ = 3 \sqrt{5} }$ i.e 6.708 units on the graph

Step-by-step explanation:

From the diagram attached below; we can see a graphical representation showing the mid-segment of the trapezoid JKLM. The mid-segment is located at the line parallel to the sides of the trapezoid. However; these mid-segments are X and Y found on the line JK and LM respectively from the graph.

Using the expression for midpoints between two points to determine the exact length of the mid-segment ; we have:

$\mathbf{ YX = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2} }$