First you calculate the distance between B and D, A and C.
We have the distance between B and D will be: sqrt[(x2-x1)^2+(y2-y1)^2] = 8.5
The distance between A and C will be: 14.14
We have the area of rhombus: 1/2 * 8.5 * 14.14 = 60 square units.
Alright, so we have
<span>-9x+6y=-30
</span><span>-12x+9y=-30
Although we might really want to say -9x+6y=-12x+9y, we can't do it that way. We have to get rid of a variable and go from there. Solving for y, we get
</span>-9x+6y=-30
Divide both sides by 3
-3x+2y=-10
Add 3x to both sides
2y=-10+3x
Divide both sides by 2
y=(-10+3x)/2
-12x+9y=-30
Divide both sides by 3
-4x+3y=-10
Add 4x to both sides
-10+4x=3y
Divide both sides by 3
(-10+4x)/3=y
Since we have
(-10+4x)/3=y and y=(-10+3x)/2 , we have
(-10+4x)/3=(-10+3x)/2
Since 3*2=6, we can multiply both sides by 6
-20+8x=-30+9x
Add 30 to both sides
10+8x=9x
Subtract 8x from both sides
x=10
Plug that in to any equation,and you should have your answer! Good luck, and ask if you have any questions!
We know, ball is a Sphere.
Surface area of sphere = 4πr²
A = 4 * 3.14 * (1)²
A = 12.56 Ft²
In short, Your Answer would be 12.56 Ft²
Hope this helps!
Answer:
C) 5
Step-by-step explanation:
As the horizontal lines are parallel, the ratio of the segments will be constant.
3/(3 + 4) = (x - 1)/14
3(14) = 7(x - 1)
42 = 7x - 7
7x = 35
x = 5
Answer:
1. 50.26548
2. 12.56637
3. 3.14159
4. 201.06193
5. 113.09734
6. 38.48451
7. 63.61725
8. 153.93804
9. 28.27433
10. 19.63495
Step-by-step explanation:
The formula is A = pi r^2
Hope this helps! Please award brainiest if its correct!