Answer:
j=6
Step-by-step explanation:
5j=30 Divide both sides by 5.
<u>/5 /5</u>
j=6
Hope this helps!! Have a great day C:
Step-by-step explanation:
*Assuming you meant polynomial function of degree 3*
The given zeros are 2, -1, and 3. To get the zeros in the first place, we have a deconstructed polynomial that looks like this:
(x-2)(x+1)(x-3)
Now, we can foil these out. **Quick note: if the degree of your polynomial is greater than 3, simply put a square root on one of the terms: (x-2)^2
After foiling you should get: x^3-4x^2+x+6
Answer:
x=-9/7, y=22/7
Step-by-step explanation:
Since we're using substitution, and the second equation already has the y isolated on one side, we just substitute the 'y' in 4y from the first equation with the right side of the second equation, which gets us 2x+4(3x+7)=10. Then, we simplify to get that x=-9/7. Now, we use substitution again to replace the x value in the second equation to get y. So 3(-9/7)+7=y, y=22/7.
Final answer: x=-9/7, y=22/7
I hope this helped! :D
257.80÷5=49.56 ≈50
50÷5=10