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

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

it has the same slope and a different y-intercept

hope this : )