You can use z = x², then rewrite the equation as
4z²-21z+20 = 0
This factors as
(4z-5)(z-4) = 0
so has solutions
z = 5/4, 4
The solutions for x are then
x = ±√z = {-2, -(√5)/2, (√5)/2, 2}
- The seniors in the class is 6.
- The juniors that went on the field trip is 6 students.
- There is not enough information to determine the seniors that went on the field trip.
-
<h3>How many seniors are in the class?</h3>
Seniors in the class = total number of students - total number of juniors
30 - 24 = 6
Juniors that went on the field trip = 2/3 x 24 = 16 students
To learn more about subtraction, please check: brainly.com/question/854115
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Meter
Kilogram
Liter
Kilowatt
The LCD is 6 on the left and 9 on the right.
Answer:
b = -4
Step-by-step explanation:
Well we already have m which is slope which is -1.
And if we start at (-2,-2) and go down using the slope we get -4 as the y intercept or b.
<em>Thus,</em>
<em>-4 is the y intercept or b.</em>
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<em>Hope this helps :)</em>