Http://www.tiger-algebra.com/drill/a-64a~4/n~3/
Does this look right?
it might help for you future problems as well.
Answer:
A building is 35 feet tall
35
The scuba diver is 35 feet below sea level
-35
The basement is 7.6 feet below ground
-7.6
Oliver owes his sister $23
-23
Erika jumped 2.3 feet above the ground
2.3
Step-by-step explanation:
You have to look at the word choice, like below or tall. If they are describing something below something else they generally want it to be negative, or if they are talking about how much you owe. Otherwise it will be positive. Then just match the numbers.
Answer:
I believe the answer is no
Step-by-step explanation:
Because they are all different numbers
The answer is 20 millimeters because there is 100 millimeters and to make 10 masks 20 millimeters times 5 is 1 meters and 5 masks
<span>When creating a subset of 5 elements from 7 elements, order should not matter. Therefore, we use the combination formula over the permutation formula.
The combination formula given n elements total and r elements used is n! / [r!*(n-r)!]. Substituting 7 for n and 5 for r, we get:
7! / (5!*2!) = 7*6 / 2 = 21
21 subsets can be created</span>