chantelljenkins2
07.07.2020 •
Mathematics
Please answer my question
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Ответ:
B
Step-by-step explanation:
To find a perpindicular line, you want to find the reciprical slope, and have a point.
We already have the point which is (3,9)
All we have to do is find the new slope what is easy, get the orginal slope,
flip the sides and polarity of it. So from the slope -3/2, you get 2/3.
Now you just plug all the new values into slope point formula.
y - y1 = m(x - x1).
You do simple algebra and get B as your answer
Ответ:
This is the exact value: 242 * 62% = 166.98 ≈ 167
And her estimation is 240 * 70% = 168 which is a good estimate.
Yes, because her calculation should be 70% of 240