• Ok so first for the rectangle:
Use the formula: b•h
50 • 20 = 1000 ft2
• Next, the triangle:
Formula: b•h/2
Add the 10 and 50, which is 60.
60 • 20 = 1200
1200/2 = 600 ft2
• For the circle:
Formula: π • r^2
The radius is 10ft
3.14 • 10^2
3.14 • 100 = 314 (Whole circle)
Since we need half of the circle, we divide by 2 to split them.
314/2 = 157 ft2
• Now add all together:
1000 + 600 + 157 = 1757 ft2
Answer:
X= 15
K=45
Step-by-step explanation:
The Triangle Sum Theory means that every interior angle of a triangle sums up to 180. My first approach was to put 169 as x but that isn’t correct. That is because a triangle’s smallest angles have to add up to be more than the biggest angle. Ex (10, 5, 7 that is a triangle because the sum of 5+7 is more than 10) So as you can see there are x’s next to the other numbers. That is because x needs to be able to multiply with the other numbers and stand on it’s own and add up to 180. So this would be the equation: X+8•X+3•X=180. You should find that 15 makes everything add up to 180. Now knowing x is 15 now we know that 3x is equal to 45. So k=45 That is how you solve this tricky question. Hope this helps! ❤️
It rotates 0.25 degrees in 1 minute
Answer:
2 marbles
Step-by-step explanation:
Lana has 3 bags with x marbles in each bag totaling 12 marbles
3x=12
Divide by 3
3x/3 =12/3
x =4
Each bag has 4 marbles
Markus has 3 bags with y marbles totaling 18 marbles
3y =18
Divide each side by 3
3y/3 =18/3
y =6
Each bag has 6 marbles
6-4 =2
There are 2 more marbles in Markus' bags than in Lara's
That would be C, D, E and F.
