Quickly . the area of one of the small right triangles outlined in blue is a cm2, while the area of the square outlined in red is b cm2. which expressions show the area of the shaded region in terms of a and b? check all that apply.
1. 4a + b
2. 8a + b
3. 2a + b
4. 1.5b
5. 12a

1, 4, and 5

Step-by-step explanation:

There are 4 triangle with area 4 so that is 4A and since there is only one square the area of the whole thing is 4A+B. Each triangle is also equal to 1/8 of the square. This means A=B/8 or B=8A. First replacing B in the previous equation you get 4A+8A which is 12A. Then replacing A with B/8 you get 4(B/8)+B which is B/2+B which is 3B/2 and 3/2 is 1.5 so 3/2B is equal to 1.5B.

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

cant open file sorry!

step-by-step explanation: