Simplify (3x + 1)2 using the square of a binomial formula. A) x2 + 2x - 1
B) 9x2 + 6x + 1
C) 9x² - 6x-1
D) 9x2 + 2x + 1

B) 9x² + 6x + 1

Step-by-step explanation:

(3x + 1)^2

(3x + 1) • (3x + 1)

9x² + 3x + 3x + 1

9x² + 6x + 1

intensity of the vector is v= √37 ≈ 6.08 units and make angle ∡α ≈ 9.46° with east direction

step-by-step explanation:

required vector is consists of the two componentsvx= 2+4=6 units   and vy= 1 unit and vx ⊥ vywe will use pythagorian theorem to find intensity of the vector vv∧2 = vx∧2 + vy∧2 => v = √vx∧2 + vy∧2 = √6∧2 + 1∧2 = √36+1 = √37 ≈ 6.08 unitsthe angle ∡α between vector and east direction we wil find with tanαtanα = 1/6 => α = arc tanα = arc 1/6 => α ≈ 9.46°

hope this

costs the what? what is the cost of the pants?

step-by-step explanation:

if it is $10, then the price is 14.

take 40% of the cost, and then add the cost.

40% of 10 = 4

4+10 = 14.