Answer:
137
Step-by-step explanation:
2(-9)^2+5(-9)+20
2(81)-45+20
162-45+20
117+20
137
Answer:
a=3,b=5
Step-by-step explanation:
so as you got it:
Answer:
150 miles
Step-by-step explanation:
375 divided by 7.5 is 50
50 time 3 is 150
When dilation is about the origin, as it is here in every case, the image point coordinates are the original (pre-image) coordinates multiplied by the scale factor.
1. Multiply every coordinate value by 5:
... W' = (-5, 10), X' = (-15, -5), Y' = (25, -5), Z' = (15, 10)
2. Multiply every coordinate value by 1/3:
... A' = (-2, 5), B' = (0, 5/3), C' = (1, 10/3)
3. A' = (2, 8), B' = (6, 2), C' = (2, 2)
4. The image coordinates are 5 times the original coordinates, so ...
... the scale factor of the dilation is 5.
First, multiply both sides by 1000
1000*c = w*t*c
Since c is on both sides, they would cancel each other out
1000 = w*t
Divide both sides by t.
w = 1000*t
