A park ranger stated that the Maple to pine tree ratio in the park was 7:5 if an area you count 60 pine trees about how many map
1 answer:
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Answer:
d) 4 ± 5i
Step-by-step explanation:
Here we have to use the quadratic formula.
x =
In the given equation x^2 - 8x + 41 = 0, a =1, b = -8 and c = 41
Now plug in the given values in the above formula, we get
x =
Simplifying the above, we get
x =
x =
[√-100 = √-1 *√100 = i*10 = 10i] because the value of √-1 = i]
x = (8 ± 10i )/2
Now dividing by 2, we get
x = 4 ± 5i
The answer is d) 4 ± 5i
Hope you will understand the concept.
Thank you.
in the figure, the first number line goes with x 5
the second number line goes with x 5
the third number line goes with x > 5
the fourth number line goes with x < 5
Two less than 3/2 of a number x is no more than 5/2 is shown as:
3/2 x- 2 5 1/2
3/2 x 11/2 + 2
3/2 x 15/2
3x 15
x 5
The sum of two times a number (x) and -2 is at least 8 is shown as :
2x+(-2) 8
2x - 2 8
2x 8+2
2x 10
x 5
Seven subtracted from 4 times a number (x) is more than 13 is shown as
4x -7 > 13
4x > 13+7
4x > 20
x > 20 ÷ 4
x > 5
Four added to 3 times a number (x) is less than 19 is shown as
3x + 4 < 19
3x < 19-4
3x < 15
x < 15 ÷ 3
x< 5
to learn more about number line inequalities visit brainly.com/question/27916124
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