Answer:
Look at the place after the tenths, it is more than 5.
99.999
So add +1 to the tenths place.
Rounded to the nearest tenth would be:
<h2>100.0</h2>
23.21 is the answer i believe
Answer:
The first triangle is larger
Step-by-step explanation:
(1/2)(8)(10)=40
(1/2)(5)(13)=32.5
Answer:
28
Step-by-step explanation:
To find the area of a rectangle we multiply two edges together.
since we are looking for the surface area we are actually going to be finding 6 different areas and adding them together (since there are 6 sides to a rectangle)
ok so sides 1 and 2, the edges on the left and right will be equal, and then the four sides in the middle are all going to be equal
2(1x2) + 4(3x2) = 4 + 24 = 28
Answer:
- digits used once: 12
- repeated digits: 128
Step-by-step explanation:
In order for a number to be divisible by 4, its last two digits must be divisible by 4. This will be the case if either of these conditions holds:
- the ones digit is an even multiple of 2, and the tens digit is even
- the ones digit is an odd multiple of 2, and the tens digit is odd.
We must count the ways these conditions can be met with the given digits.
__
Since we only have even numbers to work with, the ones digit must be an even multiple of 2: 4 or 8. (The tens digit cannot be odd.) The digits 4 and 8 comprise half of the available digits, so half of all possible numbers made from these digits will be divisible by 4.
<h3>digits used once</h3>
If the numbers must use each digit exactly once, there will be 4! = 24 of them. 24/2 = 12 of these 4-digit numbers will be divisible by 4.
<h3>repeated digits</h3>
Each of the four digits can have any of four values, so there will be 4^4 = 256 possible 4-digit numbers. Of these, 256/2 = 128 will be divisible by 4.
