The approximate surface area of the balloon is 199 cm².
The approximate volume of the balloon is 262 cm³
<h3>What is the surface area and the volume of the balloon? </h3>
Radius of the balloon = circumference / 6.2832
25 / 6.2832 = 3.98cm
Surface area = 4πr²
4 x 22/7 x 3.97² = 199 cm²
Volume = 4/3πr³
4/3 x 22/7 x 3.97³ = 262.20 cm³
To learn more about the volume of a sphere, please check: brainly.com/question/13705125
Answer:
The stack is 4½ inches tall.
Step-by-step explanation:
If both books are the same thickness, you are adding 2¼ + 2¼. This means that it will be 4 and two quarters. 2/4 is the same as 1/2, so simplifying gives you 4½.
Answer:
x = -2
Step-by-step explanation:
Answer:
The correct answer is x = 12.
Step-by-step explanation:
To solve this problem, we must remember that an angle bisector divides the angle into two smaller, equal angles. This means that we can set the values for each of these smaller angles equal to one another, given that the angle is bisected. This is modeled below:
9x - 54 = 4x + 6
Now, we can solve this equation like any other. The first step is to subtract 4x from both sides.
9x - 4x - 54 = 4x - 4x + 6
5x - 54 = 6
Then, we should add 54 to both sides.
5x - 54 + 54 = 6 + 54
5x = 60
Finally, we can divide both sides by 5.
5x/5 = 60/5
x = 12
Therefore, the correct answer is x = 12.
Hope this helps!
Answer:
English and French:40 and English:10
Step-by-step explanation:
English and French:4÷5×50
=40
English:1÷10×50
=10
