Since the diameter is 12cm, we will use the radius formula = d/2= r
12/2 = 6cm
Area:
A = 3.14(r)^2
A = 3.14(6)^2
A = 3.14(36)
Answer:
A= 113.04 sq cm
Answer:
100,000 possible passwords
Step-by-step explanation:
5 vowels, each of the letters in the password can be chosen: 5^5=3125.
If it's case sensitive, then there's 10 choices for each character: 5^10= 100,000
Answer:
18,000 forks
Step-by-step explanation:
They are making 3,000 forks each hour for 6 hours, so you would multiply 3,000 by 6. 3,000 multiplied by 6 is 18,000.
Answer:
Step-by-step explanation:
0.144 rational
√(0.144) irrational
√(0.0144)=0.12 rational
A ratio of 5:7 means out of 12 books, 5 are in one category and 7 are in another. (The “category” isn’t specified in this problem.)
So here we’re STARTING with 36 books; we want to find a ratio that is equal to 5:7 and adds up to 36. Well 36 = 3(12), and so if we multiply each number in the ratio by 3 as well, we might get what we want. Doing that gives us 15:21, which adds up to 36 and is equal to 5:7. Boom, that’s the answer.
P.S. Here’s a question you can think about: why do ratios stay the same when you multiply each number by the same amount? (For example, why is 3:1 the same as 6:2?)
