The picture is the third one and the equation is a² + 11² = c²
Step-by-step explanation:
- Step 1: In the first step of the answer, the given words are find the length of a. Equation is 20² + 8² = a².
The picture corresponding to this is the third picture.
- Step 2: For the second step, words given are find the length of c.
The corresponding equation is a² + 11² = c²
Answer:
y = -1/4 x + 15.
Step-by-step explanation:
y = 4x - 2 has a slope of 4 ( = the coefficient of x).
The line at right angles to it will therefore of a slope of -1/4.
Using the point-slope form of a line the line t which passes through (4, 14) is found as follows:
y - 14 = -1/4(x - 4)
y = -1/4x + 1 + 14
y = -1/4x + 15
Answer:
B. trapezoid
Step-by-step explanation:
The other three have two pairs of parallel sides
The resulting equation after substitution is
5x + 4(-2x + 6) = 3
quite literally you replaced y with what it equals (as said in the second equation)
you then distribute the 4 within the parenthesis
5x + -8x + 24 = 3
You make it easier
5x - 8x +24 = 3
you combine like terms
-3x + 24 = 3
you subtract 24 from both sides
-3x = -21
you divide both sides by -3
meaning x = 7
you then use that value x = 7 and substitude it for the x in the other equation.
That makes the y equation
y = -2(7) + 6
you then solve
y = -14+6
y = 6 - 14
y = -8
Answer:
58.5 is your answer
Step-by-step explanation:
