Answer:
198
Step-by-step explanation:
270/15 gives us 18, his miles per gallon. multiply that by 11, and you get 198.
Applying the formula, it is found that the SP for both numbers is of 7.
The first step is finding the mean for both sets, hence:
Then, the SP(sum of products of deviations) is the sum of the multiplications between each value x and the mean, with each respective value of y(same index) and the mean, hence:
The SP for both numbers is of 7.
A similar problem is given at brainly.com/question/20640860
1. Divide both sides by 3
x - 2 > -1
2. Add 2 to both sides
x > -1 + 2
3. Simplify -1+2 to 1
x > 1
The answer is x > 1.
Answer:
two (n = 4, and n = -1)
Step-by-step explanation:
Let's solve it as follows:
First, we can divide out the common factor of 3 from each side, to get:
n(2n-8) = 8 -2n
Next, we expand, and move all the terms over to the right hand side (so that we have 0 on the LHS - as this is how we will want to solve the quadratic equation):
2n^2 - 8n - 8 +2n = 0
2n^2 - 6n - 8 = 0.
We also see we can further simplify by dividing out the factor of 2, to get:
n^2 -3n -4. = 0
Next, as this is a quadratic, the usual next step is to factorise, to get:
(n-4)(n+1) = 0
So we see that n = 4 and n = -1 are the two solutions.
Answer:
Step-by-step explanation:
129.5 is the answer...
