Estimate the circumference of a circle that has a diameter of 13 yards. show the result in yards.

Step-by-step explanation:

Circumference= 2πr

Radius= diameter ÷ 2

C= 2(3.14)(13/2)

divide 2 into 13 first

C= 2(3.14)(6.5)

multiply

C= 40.82 yards

ANSWER:

The circumference is 40.82 yards, estimated to 41 yards.

but the anwser is not 41 its another estimateon plz mark me as brainlest

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

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.