Answer:
6x² - 17x - 45
Step-by-step explanation:
Each term in the second factor is multiplied by each term in the first factor
(2x - 9)(3x + 5)
= 2x(3x + 5) - 9(3x + 5) ← distribute both parenthesis
= 6x² + 10x - 27x - 45 ← collect like terms
= 6x² - 17x - 45
Answer:
rhombus
Step-by-step explanation: Becuase it has all equal sides
Evaluate BC, B is -4 and C is 2 so therefore
-4*2
-8
Answer:
At a distance of 525 km from the station both trains meet.
Step-by-step explanation:
Speed of the first train = 75
Speed of the second train = 105
Distance traveled by first train in two hours = 75 × 2 = 150 km
When the first train traveled a distance of 150 km than second train starts from the station.
Let suppose the two trains meet after T hours.
Value of T is given by
Put the value of D & & we get
T = 5 hours
Thus the two trains meet after 5 hours &
⇒ Distance from the station is = Speed of second train × 5
⇒ Distance from the station is = 105 × 5
⇒ Distance from the station is = 525 km
Therefore at a distance of 525 km from the station both trains meet.
Answer:
m<M = 50°
Step-by-step explanation:
m<M +m<P +m<V=180° (sum of the interior angles of the triangle)
x+78+52°=180°
=>x+130= 180°
=>x=180°-130°
=>x= 50°