Suppose 42 stamps are added to a stamp collection that has 30 stamps. what is the percent of change? round your answer to the nearest tenth, if necessary.

The percentage change in the number of stamps is 140%.

Step-by-step explanation:

We are given the following information in the question:

Number of stamps added = 42

Initial number of stamps = 30

Total umber of stamps = 72

Formula:

Percentage change =

Putting the values, we have:

Hence, the percentage change is 140%.

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

the radius is 2 times the diameter.

step-by-step explanation: