Answer:
250%
Step-by-step explanation:
Where: 80 is the old value and 280 is the new value.
Percent change = [(New - Old ) / |Old|] x 100%
Percent change = [(280 - 80) / |80|] x 100 = [(200) / 80] x 100 = 250 % (decrease)
In this case we have a positive change (increase) of 250 percent because the new value is smaller than the old value.
Answer:
So 11 must be subtracted to get a perfect square. The square root of 3 is starts with 1.7, so the square root of 300 will start with 17. So indeed 289=300–11 is the largest square number smaller than 300, so 11 is the smallest number we can subtract from 300 to make it a square.
Step-by-step explanation:
Answer: A
Step-by-step explanation:
Algebraic (or numeric) expression (also referred to as phrase) A mathematical expression (numeric/algebraic) is one or a group of mathematical symbols representing a number or quantity. It may include numbers, variables, constants, operators, and grouping symbols. One side of an equation is also an expression.
Answer:
numero tres es correcto
Step-by-step explanation:
(y - y1) = m (x -x1)
( y - 5/2) = -1/2 (x - -2)
(y - 5/2) = -1/2 ( x + 2)
y - 5/2 = -1/2 x - 1
y = -x/2 - 1 + 5/2
y = -x/2 - 2/2 + 5/2
y = -x/2 + 3/2
