Answer:
x = 1 11/15
Step-by-step explanation:
Using ratios of similar triangles
3 5.2
-------- = ----------
4 (5.2 + x)
Using cross products
3 * (5.2 + x) = 5.2 * 4
Distribute
15.6 + 3x = 20.8
Subtract 15.6 from each side
15.6-15.6 + 3x = 20.8 -15.6
3x =5.2
Divide each side by 3
3x/3 = 5.2/3
x = 5.2/3
x=52/30
x = 26/15
x = 1 11/15
Answer:
-2x-5y+8z+4.5=0
Step-by-step explanation:
Let (x,y,z) be the coordinates of the point lying on the needed plane. This point is equidistant from the points (-3, 5, -4) and (-5, 0, 4), so
Answer:
(-6,2)
Step-by-step explanation:
An ordered pair is a solution if when substituted it makes the equation true. If when you substitute, it does not make the equation true then it is not a solution.
-3x - 7y = 4
Substitute:
-3(-5) - 7(2) = 4
15 - 14 = 4
1 = 4 FALSE
-3(2) - 7(-5) = 4
-6 + 35 = 4
29 = 4 FALSE
-3(2) - 7(-6) = 4
-6 + 42 = 4
36 = 4 FALSE
-3(-6) - 7(2) = 4
18 - 14 = 4
4 = 4 TRUE
6.5 iiiiiiiiiiiiiiiiiiiiiiiiiiiiii
3, 6, 12, 24, 48, 96, 192. You just multiply the previous number by 2.