First off, an inequality means that there is no equals sign... it will be either greater than (>) or less than (<). So we'll solve yours with the assumption that it is supposed to be greater than...
2s + 5s + 12 > 132
7s + 12 > 132
7s > 132 - 12
7s > 120
s > 120/7
s > 17 1/7
**If it was supposed to be less than instead of greater than, just change the sign. It doesn't affect the outcome.
Answer: 3x^2+16x-12
Step-by-step explanation:
Answer:
Step-by-step explanation:
The fundamental step would be to determine the values of p and E which i believe is the margin of error in this case. Consider the following two equations;
We simply add the two equations and solve for p;
We then substitute this value of p in either equation and solve for E;
Since we have both p and E, the confidence interval can thus be written as;
Subtract three from either side. That will give you 4r=-21. Divide -21 by 4 and r will equal -5.25.
Answer is choice B
The ratio of the sides (first to the second) is 11/9 since we divide 22/18 and reduce that fraction
Once we know the scale factor is 11/9, we square it to get (11/9)^2 = 121/81 which is the ratio of the first area to the second area
