X= 41.666666 repeating. not sure if you wanted the (x)(3) or if you meant x cubed, so x^3
Answer: D (5/2, -17/4)
Step-by-step explanation: Using elimination your goal is to get rid or 1 variable so you can solve for the one that's left. By adding the -2y and 2y you will get 0. You will also add the 3x+x (4x) and -1+11 (10). You have now gotten rid of the y and have 4x=10. By dividing each side by 4 we now know x =2.5. D is the only possible solution with x=2.5 (5/2) but to solve for y you plug 2.5 in to an equation as x so) x-2y=11
2.5-2y=11
-2y=8.5 Answer D (5/2,-17/4) y=-17/4 (4.25)
Answer: See explanation
Step-by-step explanation:
Let the base be represented by x.
Therefore, the height will be = 3 × x = 3x
Since Area of a triangle = 1/2 × base × height
1/2 × x × 3x = 73.5
3x²/2 = 73.5
3x² = 73.5 × 2
3x² = 147
x² = 147/3
x² = 49
x = ✓49
x = 7
Base = 7cm
Height = 3 × 7 = 21cm
12.6 (recurring) %
300 ÷ 10 = 30 = 10%
38 - 30 = 8
8 ÷ 3 = 2.6 (recurring)
10 + 2.6 (recurring) = 12.6 (recurring)
Hope this helps!