It would be 6 because it it under .5 so you wouldn't round up
T-shirt costs $4
Sweater costs $4(4)
Sweater costs 4 x 4
4 x 4 = 16
Sweater costs $16
hope this helps
10 different groups can ski.
This is a combination of 5 items taken 3 at a time:
Answer:
x cubed minus y cubed is equal to 504
Step-by-step explanation:
First we need to know what the values of x and y are. We can do this pretty easily, by just solving both equations for x, and equating them to each other:
With the first:
x + y = 10
x = 10 - y
And with the other
x - y = 6
x = 6 + y
Now that we have two definitions of x, we can say that the expressions are equal, and solve for y:
10 - y = 6 + y
10 - 6 = y + y
4 = 2y
y = 2
And now that we know what y is, we can find x:
x = 10 - y
x = 10 - 2
x = 8
So x is equal to eight. We can check our answer by plugging x into the other equation and seeing if we get the same value for y:
x - y = 6
8 - y = 6
-y = 6 - 8
-y = -2
y = 2
So we know we solved that correctly.
Now if we cube each number, eight cubed is equal to 512, and 2 cubed is equal to 8. If we subtract the latter from the former we get 504.
so x cubed minus y cubed is equal to 504
Answer:
The sequence -12 , -18 , -27 , ............ is generated using the formula ⇒ 1st sequence
Step-by-step explanation:
The recursive formula of the sequence is f(n + 1) = 1.5 f(n)
That means there is a constant ratio 1.5 between each two consecutive terms
In sequence -12 , -18 , -27 , ............
The first term is -12
The formula is f(n + 1) = 1.5 f(n)
Use the first term where n = 1 to find the 2nd term
∵ f(1) = -12
- Substitute n by 1 in the given formula
∵ f(1 + 1) = 1.5 f(1)
∴ f(2) = 1.5(-12)
∴ f(2) = -18
Use the second term where n = 2 to find the 3rd term
∵ f(2) = -18
- Substitute n by 2 in the given formula
∵ f(2 + 1) = 1.5 f(2)
∴ f(3) = 1.5(-18)
∴ f(3) = -27
∴ The sequence -12 , -18 , -27 , ............ is generated using the formula
