Vector is a quantity having magnitude as well as direction
its important because these are best way to relate a relationship between speed acceleration velocity etc
and helps to understand how the world that is around u behave
so vectors are really important
hope it helps
Answer:
Step-by-step explanation:
ax² + bx + c = a(x - 
)(x - 
)
D = b² - 4ac
= ( - b ± √D ) / 2a
~~~~~~~~~~~~
Let x² = y , then y² + 8y - 9
Find the roots of equation y² + 8y - 9 = 0
D = 64 + 36 = 100 = 10²
= ( - 8 - 10) / 2 = - 9
= ( - 8 + 10) / 2 = 1
y² + 8y - 9 = (y - 1)(y + 9) = (x² - 1)(x² + 9)
x² = 1 ⇒ = ± √1
+ 8x² - 9 = (x - 1)(x + 1)(x² + 9)
Answer:
w=x+1/3y
Step-by-step explanation:
Step 1: Add -4w to both sides.
7w−3x+−4w=4w+y+−4w
3w−3x=y
Step 2: Add 3x to both sides.
3w−3x+3x=y+3x
3w=3x+y
Step 3: Divide both sides by 3.
3w
/3
=3x+y
/3
w=x+
1/3y
w equals x + 1/3y
Answer:
• exterior angle of a triangle is equal to sum of opposite interior angle
(6x-7) = (103-x) + 2x
6x-7 = 103 - x + 2x
6x-7 = 103 + x
6x - 7 - x -103 = 0
6x - x - 110 = 0
5x - 110 = 0
5x = 110
x = 110/5
x = 22
as exterior angle is (6x-7)
= 6 × 22 - 7
= 125
-> Exterior angle is 125°
pls do mark as brainliest. . . ☺
Answer:
the answer to predict the city's population is 2050
