Answer:
0.4069 ; 1.843
Step-by-step explanation:
Given:
Base of parallelogram, b = (2x - 1)
Height = (4x - 7)
Area = 1
Area of parallelogram = Base * height
Area of parallelogram = (2x - 1) * (4x - 7)
(2x - 1) * (4x - 7) = 1
8x² - 14x - 4x + 7 = 1
8x² - 18x + 7 - 1 = 0
8x² - 18x + 6 = 0
Divide through by 2
4x² - 9x + 3 = 0
Solving the quadratic equation :
Using the formula
-b ± √(b² - 4ac) / 2a
a = 4 ; b = - 9 ; c = 3
Plugging in the values :
-(-9) ± √((-9)² - 4(4)(3)) / 2(4)
9 ± √(81 - 48) / 8
9 ± √33 / 8
(9 ± 5.7445626) / 8
(9 - 5.7445626) / 8) = 0.4069
(9 + 5.7445626) / 8 = 1.843
For
y=a(x-h)^2+k
the axis of symmetry is x=h
so
y=2/3(x-2)^2-5
the axis of symmetry is x=2
answer is C
Answer:
Im confused, am i supposed to pick out of the number then it will be 10.
Step-by-step explanation:
Trend line <em>- A line on a scatterplot that helps show the correlation between data sets more clearly. It is used to make predictions. it is also called a line of best fit.</em>
Pedro created a scatterplot and a trend line for data that he collected by comparing the number of minutes playing a game and the number of levels passed.
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Based on the information shown, which is the <u><em>best prediction for the number of levels passed after</em></u> playing for 20 minutes?
Most of scatterplot that are trendline's. They go from a little number to a big number. I'm kinda of confused from the multiple choice questions but 9,10,40,42 seems reasonable but not how 10 goes all the way to 40 it will be a right answer if it was 9,10,15,20,35,40,42
Answer:
Step-by-step explanation: