Answer:
2.28 and 0.22
Step-by-step explanation:
2x²+1=5x
2x²-5x+1=0
this cannot be properly factorized
so let's use the almighty formula,
where a=2, b=-5, c= 1
=-(-5)±√{(-5)²-4x2x1} x 1/(2 x 2)
=5±√25-8 x1/4
=5±√17 x ¼
=(5±4.12)/4
=2.28. or. 0.22
roots=2.28 and 0.22
Answer:
Step-by-step explanation:
i got you luv
whats up?
Answer:
Probability = 0.4443
Step-by-step explanation:
The provided information is:
Consider X be the weight of extra-large egg that is normally distributed with mean and standard deviation
Also, sample size n = 12.
Thus, the probability that an egg in a carton of a dozen eggs weights more than 3.5 oz is:
Answer:
x = -1
Step-by-step explanation:
1. Simplifying
6x + 4 = 4x + 2
2. Reorder the terms
4 + 6x = 4x + 2 to 4 + 6x = 2 + 4x
3. Solving
4 + 6x = 2 + 4x
4. Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right. Then add '-4x' to each side of the equation.
4 + 6x + -4x = 2 + 4x + -4x
5. Combine like terms: 6x + -4x = 2x
4 + 2x = 2 + 4x + -4x
6. Combine like terms: 4x + -4x = 0
4 + 2x = 2 + 0
4 + 2x = 2
7. Add '-4' to each side of the equation.
4 + -4 + 2x = 2 + -4
8. Combine like terms: 4 + -4 = 0
0 + 2x = 2 + -4
2x = 2 + -4
9. Combine like terms: 2 + -4 = -2
2x = -2
10. Divide each side by '2'.
x = -1
11. Simplifying
x = -1
Answer:
Add 5.2 to each side of the equation
Step-by-step explanation:
4.2y-5.2+5.2=18.5+5.2
4.2y=23.7 (then divide by 4.2)
y=5.64