Answer:
(-9)(2)= -18
Step-by-step explanation:
since there are no signs in this expression, we will multiply. always remember, a negative times a positive will always be negative. just multiply 9 and 2 and you get 18. then add a negative sign. -18
Answer:
$1.2
Step-by-step explanation:
Given the total cost, in dollars, given by the function c(p) = 1.2p.
If p = 1
c(1) = 1.2(1)
c(1) = $1.2
If p = 2
c(2) = 1.2(2)
c(2) = $2.4
If p = 3
c(3) = 1.2(3)
c(3) = $3.6
If p = 4
c(4) = 1.2(4)
c(4) = $4.8
Common difference = c2 - c1 = c3 - c2 = c4 - c3
Common difference = 2.4 - 1.2 = 3.6 - 2.4 = 4.8 - 3.6 = 1.2
Hence the common difference is $1.2
Answer:
-30
Step-by-step explanation:
1) Remove unnecessary parenthesis:
-20-10
2) Calculate the difference:
-30
Let the variable used in the expression be "x".
Since the desired expression should contain 5 terms, therefore the powers of "x" will be as follows:
x^0 , x^1 , x^2, x^3 and x^4 where x^0 = 1 and x^1 = x
Now we are given only 4 coefficients to use, so we will have to assume a fifth assume.
Assume the fifth coefficient to be 7
It is a convention to write the powers in an expression in descending order, so the expression will be as follows (without coefficients):
x^4 + x^3 + x^2 + x + constant
Now add the coefficients in any desired order since there are no conditions, the final expression can be written as follows:
12 x^4 +15 x^3 +18 x^2 + 21 x + 7