R(s + t) = st
Rs + Rt = st
Rs - st = -Rt
s ( R - t) = -Rt
*s = - Rt / (R - t) Multiply through by -1 on the right.
*s = Rt / (t - R) Put in the brackets in your answer. What you have been writing means
s = Rt/r - R you need the brackets. The stars mean that either could be an answer. I think your problem could be the brackets. Now I'm reasonably certain this is correct.
Answer:
Option D) -9
Step-by-step explanation:
Here (6 , n) corresponds to an ordered pair solution that is (x , y) so we have the value of x that is 6 but we need the value of y which is f(x) so we insert the value of x into the function to get the value of n like this,
![f(x)=-2x+3\\f(6)=-2(6)+3\\n=-12+3\\n=-9\\](https://tex.z-dn.net/?f=f%28x%29%3D-2x%2B3%5C%5Cf%286%29%3D-2%286%29%2B3%5C%5Cn%3D-12%2B3%5C%5Cn%3D-9%5C%5C)
because f(x) corresponds to y and hence f(6) corresponds to n
Answer:
<u>a) A simple random sample of 340 employees</u>
<u>b) a) Cluster sample </u>
Step-by-step explanation:
a) <em>Remember</em>, the sample size of most research work is a factor to consider in other to determine if the data collected represents the true percentage of the entire population.
Hence, a small random sample of 34 employees will not give more precise information than a larger sample of 340 employees because the larger sample contains more representation of the population.
b) A cluster sample is best used in this case because it involves<u> dividing the population into several clusters or groups,</u> then the researcher r<u>andomly selects a particular cluster or group </u>in other collect research data for analysis.
Whereas in this case, the randomly selected clusters are the different (individual restaurant) franchise locations.
Answer:
- x = 18
- 45°
Step-by-step explanation:
First part:
- Write out an equation to represent the image: 2x + 3x = 90
- Combine like terms: 5x = 90
- Divide each side by 5 to cancel out the 5 next to x. It should now look like this: x = 18
Second part:
- 90 ÷ 2 = 45°
I hope this helps!
18 + 81 = 9(x²<span> + 6x + 9)
</span><span>11 = (x + 3)</span>²
When we are completing the square, we are going to move the value of c across the equals. We will do that by adding, and end up with
18=9(x²+6x)
We take the value of b (the coefficient of x), divide it by 2 and square it:
(6/2)²=3²=9
This is the value that completes the square. However, since the entire square is multiplied by 9, this value must be multiplied by 9 before we can add it across the equals:
18+9(9) = 9(x²+6x+9)
18+81=9(x²+6x+9)
99=9(x²+6x+9)
Dividing both sides by 9, we have:
11=x²+6x+9
11=(x+3)²