Answer:
yes
Step-by-step explanation:
Answer:
Last part 24x
Step-by-step explanation:
I understand some of this, like the last question. if each class had 24 pupil, and were trying to find out how many are in each class, it would be 24x (x stands for the amount of classes)
You have not given a true amount of pupils so I can not give a 100% correct answer for the first part.
Steps:
subtract 3 from both sides:
2x²-5x+1 - 3 = 3 - 3
Simplify:
2x² - 5x - 2 = 0
Solve with the quadratic formula :
for a = 2 , b = - 5 , c = - 2
x₁ = - ( - 5 ) +√ ( -5 )² - 4 * 2 ( - 2 ) / 2 * 2 =
x₁ = 5 + √ 41 / 4
x₂ = - ( - 5 ) - √ ( -5 )² - 4 * 2 ( - 2 ) / 2 * 2
x₂ = 5 - √ 41 / 4
The answer to this is -7 + 2x
You first do distributive property which would be (2 * x) = 2x and (2 * -5) = -10
After you do this you would do 3 + (-10) which gives you -7, because its adding opposites so you subtract
After this you have -7 +2x
Answer:
70
Step-by-step explanation:
In a quadrilateral the angles add up to 360 degrees and so 360 - 290 = 70 so the answer would be 70.
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