Step-by-step explanation:
the first coordinate is (-3 5),
x+3y -12 the second coordinate is (3, 3)
y= -1/3x +4
When adding or subtracting fractions, multiply to get the same denominator (bottom number).
When multipling two fractions, just multiply straight across, factor diagonally if possible.
When dividing fractions, flip the second fraction over and multiply.
For the polynomials, you just need to combine like terms.
3x + 4y² + 7x + 6y² = (3x + 7x) + (4y² + 6y²) = 10x + 10y²
You can factor this further but I don't know if its necessary.
= 10(x + y)
Let me know if you have any questions.
<h3>
Answer: 6.282</h3>
Explanation:
Refer to the table below. I've added a third row where I multiplied each x value with its corresponding frequency value f. We can refer to this row as the xf row.
Once we know the xf values, we add them up to get 245.
We'll then divide that result over the sum of the frequency values (add everything in the second row). The sum of the frequency values is 39.
So the mean is approximately: 245/39 = 6.282051 which rounds to 6.282
Notice that this mean value is fairly close to the x value which has the highest frequency.