Which set of numbers can represent the side lengths, in inches, of an acute triangle? 4, 5, 75, 7, 86, 7, 107, 9, 12

5, 7, 8

Step-by-step explanation:

we know that

If the triangle is an acute triangle

then

applying the Pythagoras Theorem

Verify each case

Remember that the greater side is c

case a) 4, 5, 7

substitute

-----> is not true

therefore

Is not an acute triangle

case b) 5, 7, 8

substitute

-----> is true

therefore

Is an acute triangle

case c) 6, 7, 10

substitute

-----> is not true

therefore

Is not an acute triangle

case d) 7, 9, 12

substitute

-----> is not true

therefore

Is not an acute triangle

b

step-by-step explanation:

given

- 2 (3x + 12y - 5 - 17x - 16y + 4 )

simplify the parenthesis by collecting like terms

= - 2 (- 14x - 4y - 1) ← distribute the parenthesis by - 2

= 28x + 8y + 2 → b

mx+89b(-98)nb

step-by-step explanation: