Which expressions are equivalent to 10a-25+5b - - - answer now and i will put u give u crown

Answer with explanation:

Two or more expressions are said to be equivalent expression, if we express that expression in any other way,and by substituting the value of variables, we get the same result as in the original.

Original expression = 10 a -2 5 + 5 b

Equivalent Expression = 5 × 2 a - 5 × 5 + 5 × b

                                 = 5× [2 a - 5 + b]

Addition of number follow associative law,that is,→ a +(b+c)=(a+b)+c=(a+c)+b

So,Equivalent Expression to,10 a -2 5 + 5 b are

→ 5× [2 a - 5 + b]

or,→ 5 × [ 2 a + b -5 ]

or,→ 5 × [-5 +b + 2 a]

or,→ 5 × [ b - 5 + 2 a]

or,→ 5× [2 a - 5 ] + 5 b

or, → 5× [b-5]+10 a

or, → 5× [2 a + b]- 2 5

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

c is the answer

step-by-step explanation: