Answer:
9)x=11 y=3
11)x=18 y=5
Step-by-step explanation:
9) 9x+25=13x+19 13x-19+17y+5=180
9x+44=13x 129+17y=180
44=4x 17y=51
11=x y=3
11) 49+3x=7x-23 3x=11y-1
Answer:
meters
Step-by-step explanation:
From the answer choices, we basically need to find which of them is between 
and 
<em>Converting all of them to decimals would make it really easier:</em>
<em />
<em>So we need to find number between -0.5 and -1.67</em>
<em />
<em>Answer choice A is -2.33</em>
<em>Answer choice B is -0.75</em>
<em>Answer choice C is -0.25</em>
<em>Answer chioce D is -1.83</em>
<em />
<em>So which number, from the choices, is between -0.5 & -1.67?</em>
Clearly, it is -0.75, or, meters
Answer:
50
Step-by-step explanation:
you multiply 1/5 and 250/1 to get 250/5 then simplify to get 50
Answer:
y = x^2 - 4
Step-by-step explanation:
The vertex of a parabola is exactly halfway between the focus and the directrix. If the focus is at (0, -6) and the directrix is the line y = -2, then we do this to locate the vertex: Draw a vertical line through (0, -6) also crossing the line y = -2. The y value halfway between y = -6 and y = -2 is y = -4, and the vertex is thus (0, -4).
Using the vertex method, write out the equation of this parabola, starting with the general form y - k = (x-h)^2, where (h, k) is the vertex. Here h = 0 and k = -4
We get: y + 4 = (x - 0)^2, or y + 4 = x^2, or y = x^2 - 4. As a check, let x = 0; y = -4, which is the y-coordinate of the vertex.
Answer:
27y - 6
Step-by-step explanation:
3(9y - 2) Multiply 3 times each term in the parentheses
3 * 9y = 27y
3 * -2 = -6
