Answer:
6
Step-by-step explanation:
No. objects in one set = 7
Let there be n set
Then, No. objects in n set = 7*n = 7n
Given that total no of objects are 48
Thus,
7n = 48
n = 48/7 = (42+6)/7 = 42/7 + 6/7 = 6 + 6/7
n = 6 + 6/7
Thus, there will be 6 set which has 7 objects. fraction means one set is fraction 6/7 but set cannot be in fraction hence negating it.
Now, total objects in 6 sets = 6*7 = 42.
No. of objects left = 48 - 6 = 6
You can compare and contrast whole number, integers, and rational numbers. For instance, some are negative some aren't!
55. B
56. F
57. B
58. 2 x 7 = 14 for the steps and top, 2 x 3 = 6 for the back, 2 x 4 = 8 for the bottom, ( ( 3 x 2 ) + 3 ) x 2 = 18 for the two sides.
Altogether, the surface area is:
= 14 + 6 + 8 + 18 = 46 units²
59. I
60. D
Answer:
25. a = 60
26. a = 17
Step-by-step explanation:
In these two problems we are going to use a property of parallelograms that says: opposite angles have equal measure
so we have
25.
and for 26 we have
Let
so that
. Then the integral becomes
