Answer:
i am not sure
Step-by-step explanation:
sorry i am not the best at this but you can tyr
Answer:
The first pump can do 1/0 of the work per hour
Together they do 1/6 of the work per hour
The second alone would do (1/6 - 1/10) of the work per hour.
1/6 - 1/10 = 1/15
The second pump would take 15 hours to do the work.
C) 15
Hope this helps. :)
That is a convex hexagon
D
Answer:
46°
Step-by-step explanation:
We can tell that this triangle is an isosceles triangle because 2 of it's sides are the same, therefore, two of it's angles are the same.
Looking at it, we can assume that the two angles not defined (x and the other one) are the two angles that are the same because they look similar.
Now, the angles of all triangles add up to 180°. So, we can subtract 88° from 180 to see what the two angles add up to.
So both of these angles add up to 92 degrees. Since there are two, we divide 92 by 2.
Hope this helped!
Step-by-step explanation:
21.
1, 2, 4, 8, 16, 31, ... , ....
by using the formula, we can find :
T7 = [7⁴ - 6(7)³ +23(7)² - 18(7) +24] / 24 =
(2401 - 2058 + 1127 - 126 +24) / 24 =
1368/ 24 = 57
T8 = [8⁴-6(8)³+23(8)²-18(8)+24]/24 =
(4096-3072+1472-144+24)/24 =
2376/ 24 = 99