Answer:
Step-by-step explanation:
Given
Two integers a and b
The first statement in the question says, their sum is at least 30
The keyword "at least" means their sum can not fall below 30 and this is represented mathematically as
The next statement says their difference is at least 10 and b is greater;
The keyword "at least" means the same as used above (i.e. can not exceed); The second statement is represented as:
Hence, the system of inequality that represents the statements are:
The formula of the area of the trapezoid is:
,
where h is the height, and b_1 and b_2 are the two bases of the trapezoid.
In our problem h=3km, and the bases are 5km and 7 km. Substituting these values in the formula, we find:
. (km)
Answer: B. 18
Sum ---- Combinations
2 --------- 1
3 --------- 2
4 --------- 3
5 --------- 4
6 --------- 5
7 --------- 6
8 --------- 5
9 --------- 4
10 ------- 3
11 ------- 2
12 ------- 1
7 has 6 combinations.
Now,
2 and 12 ---- 1+1 = 2
2 and 5 ------1+4 = 5
12 and 8 ---- 1+5 = 6
12 and 8 would, therefore, make the game fair.
Answer:
-
Step-by-step explanation:
y−6−y−8−x4−x−5
=y+−6+−y+−8+−x4+−x+−5
Combine Like Terms:
=y+−6+−y+−8+−x4+−x+−5
=(−x4)+(−x)+(y+−y)+(−6+−8+−5)
=−x4+−x+−19
Answer:
=−x to the power of 4 minus x minus 19
just put in the symbols were my answers are