The sum of 3a²-a-3 and 2a-9 is 3a²+a-12
3a²+a-12 - (a²-3a-7) = 3a²+a-12 - a² + 3a + 7 =
2a² +4a - 5
140
14x10 =140 -- pretend your doing 14 x 1 then put the 0 from the 10 to the 14.
Answer:
Step-by-step explanation:
In
O, ST and VT are tangents at points S and V respectively.
In quadrilateral OSTV,
(By interior angle sum postulate of a quadrilateral)
(Measure of minor arc is equal to measure of its corresponding central angle)
(By arc sum property of a circle)

Answer:8 and 12
Step-by-step explanation: 8 is 4 less than 12 and 12 and 8 equals 20
Answer:
100 m3
Step-by-step explanation:
2*5*10 = 10*10 *100