19.698 feet of cable would be needed, this would round up to 20 feet total.
What is the most logical first step in solving the equation x^2+10x+25=11?
1 answer:
Answer: The answer is (D). Take the square root of both sides of the equation.
Step-by-step explanation: Given that we are solving the following quadratic equation:
We are to select the most logical step among the given options in solving the above quadratic equation.
The correct answer is (D), because taking the square root of both the sides of the equation will directly result in the value of 'x' as follows:
Thus, (d) is the answer.
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Answer:
y = x +
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y-intercept )
To calculate the slope use the gradient formula
m = ( y₂ - y₁ ) / ( x₂ - x₁ )
with (x₁, y₁ ) = (- 3, 4) and (x₂, y₂ ) = (5, 7)
m = =
, hence
y = x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
using (5, 7 ), then
7 = + c ⇒ c = 7 -
=
y = x +
← equation in slope-intercept form