Answer:
3 units
Step-by-step explanation:
Answer:
(2.4, -1.2)
Step-by-step explanation:
Start by moving the x and the y to the same side and moving the number across the equal sign in both equations. We should now have y-0.45x=-2.3 and 2y+4.2x=7.8. We can use the elimination method by multiplying the first equation by -2 to get -2y+0.9x=4.6 and 2y+4.2x=7.8. From there, add the two equations together, eliminating y (-2+2=0). We now have 5.1x=12.4; divide both sides by 5.1 to get x=2.4. Then, in any of the two equations, let's use y-0.45x=-2.3, substitute x with 2.4. Now we have y-1.08=-2.3. Add 1.08 to both sides to get y=-1.22; round that to the nearest tenth to get -1.2.
Answer:
2
Step-by-step explanation:
the first number is one .then you write number two twice . The next number is the summation of the three previous numbers .then you write number two twice and the next number is the summation of the three previous numbers .and you do that regularly
I supposed π ≈ 3.14 and we have A = 490.87 km²:
Area(A) is: A = π × r² or 3.14 × r² = 490.87 →
r² = 490.87/3.14 → r² = 156,32 → r = √156,32 → r = 12.5
But diameter (d) is: d = 2 × r → d = 2 × 12.5 →d = 50 km
The right answer is of:
option C
please see the attached picture....
Hope it helps.....
Good luck on your assignment.....