Which expressions are equivalent to 10a - 25 + 5b10a−25+5b10, a, minus, 25, plus, 5, b?
Choose 3 answers:
Choose 3 answers:

(Choice A)
A
(2a-5+b)5(2a−5+b)5left parenthesis, 2, a, minus, 5, plus, b, right parenthesis, 5

(Choice B)
B
-2(-5a-25+5b)−2(−5a−25+5b)minus, 2, left parenthesis, minus, 5, a, minus, 25, plus, 5, b, right parenthesis

(Choice C)
C
10\times(a-2.5+0.5b)10×(a−2.5+0.5b) 10, times, left parenthesis, a, minus, 2, point, 5, plus, 0, point, 5, b, right parenthesis

(Choice D)
D
(-2a+5-b)\cdot(-5)(−2a+5−b)⋅(−5)lef t parenthesis, minus, 2, a, plus, 5, minus, b, right parenthesis, dot, left parenthesis, minus, 5, right parenthesis

(Choice E)
E
-10\cdot(-a-2.5-0.5b)−10⋅(−a−2.5−0. 5b)

step-by-step explanation:

subtract 7, so the answer is x < = 3, or c.

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v