Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 10 - Radical Expressions and Equations - 10-1 The Pythagorean Theorem - Practice and Problem-Solving Exercises - Page 604: 39


The forces are pulling at right angles to each other.

Work Step by Step

If the given forces satisfy the equation $a^2+^2=c^2$, then the forces are pulling at right angles. $50^2+120^2\overset?=130^2 \longrightarrow$ find the squares $2500+14400\overset?=16900 \longrightarrow$ add $16900=16900\checkmark$
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