WHICH EXPRESSION IS EQUIVALENT TO (3X5+8X3)-(7X2-6X3)
1 answer:
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Answer:
15.
16. m<V = 103°
17.
Step-by-step explanation:
15. The figure given is quadrilateral. Sum of interior angles of a quadrilateral = 360°
Therefore:
Solve for x
Add like terms
Subtract 112 from each side
Divide both sides by 31
16. The polygon is a hexagon. Sum of interior angles of a hexagon = 720. Therefore:
Solve for x
Add like terms
Subtract 321 from each side
Divide both sides by 21
m<V = 5x + 8
Plug in the value of x
m<V = 5(19) + 8 = 95 + 8
m<V = 103
17. The polygon is a regular pentagon. This means each of the angles measures 108°. The sum of the interior angles all together is 540.
Therefore:
Solve for x
Add 18 to both sides
Divide both sides by 9
Answer:
is the answer.
Step-by-step explanation:
Change the denominators to 15.
12 - 11 = 1.
=