Answer:
You scored more than 80 %
Step-by-step explanation:
21/25
We need to change this to a decimal, then to a percent
21/25 *4/4 = 84/100
This is out of 100 so it is 84%
84>80.
You scored more than 80 %
Answer:
![-4x^5y^3-3x^4y^3+x^5y^2](https://tex.z-dn.net/?f=-4x%5E5y%5E3-3x%5E4y%5E3%2Bx%5E5y%5E2)
Step-by-step explanation:
You need to know this indice rule:
If you multiply two terms with the same base, then add their powers and multiply their coefficients.
: Here we have to multiply each term in the first pair of brackets by the term in the second pair of brackets.
So we can split this into parts:
![(4x^2y)(-x^3y^2) +(3xy)(-x^3y^2)+(-x^2)(-x^3y^2)](https://tex.z-dn.net/?f=%284x%5E2y%29%28-x%5E3y%5E2%29%20%2B%283xy%29%28-x%5E3y%5E2%29%2B%28-x%5E2%29%28-x%5E3y%5E2%29)
Now using the rule above expand the brackets:
: Notice how
since
so
.
: Be careful with negatives, two negatives make a positive.
Now add them all together:
![-4x^5y^3-3x^4y^3+x^5y^2](https://tex.z-dn.net/?f=-4x%5E5y%5E3-3x%5E4y%5E3%2Bx%5E5y%5E2)
Answer:
First option is the correct answer
y = 4x + 5
Step-by-step explanation:
Hope it helps you in your learning process.
Answer:
From the graph, the y-intercept is 9 and the slope is -1 so the equation is y = -x + 9. We know the slope is -1 because when x goes up by 1, y decreases by 1.
Answer:
A. the probability that the sum is 11,given that the first number cube shows a 6