Answer:
<em>12.5w = 419.38</em>
<em>and</em>
<em>15.5w = 419.38</em>
Step-by-step explanation:
find the total cost of all the computer parts.
= 259.99 + 2* 39.95 + 79.49 = $419.38
Shana will save $12.50 per week and Marie will save $15.50
per week
therefore we can create two inequalities
<h2><u> Shana:</u></h2>
12.50 * w = 419.38
<em>12.5w = 419.38</em>
w = 419.38/12.5
w = 33.5504
<h2><u>Marie</u></h2>
15.50*w = 419.38
<em>15.5w = 419.38</em>
w = 419.38/15.5
w =27.0568
Must have a single line (straight). This needs to have one independent and one dependent variable (x,y).
Answer:
x=44°
y=68°
Step-by-step explanation:
this is an isosceles triangle, so the angle y is the same as the angle touching the 112°. So y+112=180. subtract 112 on both sides and you get 68° for y.
the angles inside a triangle sum up to 180°
so 68°+68°+x=180°. x=44°
Answer:
y = -0.6x^2 + 5x + 6
Step-by-step explanation:
First, find the equation of a linear line that passes through the points (0,6) and (3, 15.6) in the slope intercept form, y = mx + b. We know that the line has a y-intercept of 6, so b = 6. Substitute 3 for x, 15.6 for y, and 6 for b to find m.
y = mx + b
15.6 = 3m + 6
9.6 = 3m
m = 3.2
y = 3.2x + 6
y = a(x - 0)(x - 3) + 3.2x + 6
y = a(x)(x - 3) + 3.2x + 6
Finally, substitute 10 for x and -4 for y in the equation above to find a.
-4 = a(10)(10 - 3) + 3.2*10 + 6
-4 = a(10)(7) + 32 + 6
-4 = 70a + 38
-42 = 70a
a = -0.6
Simplify to write in standard form.
y = -0.6(x)(x - 3) + 3.2x + 6
y = -0.6x^2 + 5x + 6
Answer:
From (-3,0) to (3,2) the equation is y=1/3x + 1 and the other side from (3,1) to (4,-1) is y= -3x + 11
Step-by-step explanation:
Thanks for helping me with the other one