Answer:
340
Step-by-step explanation:
340.33 and rounfing off whole number is 340
Answer:
1.) 90 ways
2.) 15,600 ways
3.) 24 ways
Step-by-step explanation:
1.) Let's say we are given 2 digits not equal to each other...The number of different orderings would be 2*1 = 2, or if we wanted the number of ways to order 2 digits chosen : 10*9 = 90 ways
2.) The number of ways to arrange 3 letters from 26 letters is:
26 Permutes 3 = 26! / (26 -3)! = 26*25*24 = 15,600 ways to choose 3 letters in a certain order
3.) 4 different chores. The number of ways to do them = 4*3*2 *1 = 24 ways
Step-by-step explanation:
hope my answer will help you
We have 4 rectangles 10 * 25 and 2 rectangles 10*10
so surface area of the bos will be 4*250 + 2*100 = 1200 cm^3
Answer:
Length= 20
Width= 4
Step-by-step explanation:
First, you can turn this into an equation:
Length= L
width= w
So L=5w
And using the area formula for rectangles, we get L*w=80.
Now, to solve, we only need to substitute 5w into L.
Now we have 5w^2=80. We divide by 5 on both sides to get w^2=16.
We take the square root of both sides. since the length and width of an rectangle cannot be negative, we are left with only w=4.
So plugging back in, we get L=20.
To check, 20*4=80.
