A reasarcher is testing a hypothesis of a single mean. the critical Z value for alpha =.05 and a two -tailed test is +1.96 the observed z value from sample data is -2.11 the decision made by the reasarcher based on this information is to the null hypothesis

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

answer for #1 is c

answer for #2 is d

can i get brainliest

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

do you have a picture of the table