Answer:
A. B
B. C and D
Step-by-step explanation:
A: 2/3 * 7/7
7/7= 1 which is larger than 2/3
It is 225. Because you do the volume of one rectangular prism the equation is 15 x 3 x 3 which gives you 135. Then you do the volume of the other rectangular prism the equation is 10 x 3 x 3 which gives you 60. Then you add 135 + 90 that then gives you the total volume which is 225.
Answer:
A, B, and C
Step-by-step explanation:
The equilateral triangle refers to its equivalent sides and angles. So automatically, D would be ruled out.
Equilateral triangles have the same angles, so that would rule out E, because one 90° angle means it is a right triangle. Based on the explanation above, the answer would be A and B. C can be confusing but here's the explanation:
A triangle's sum of interior angles is 180°, so if a triangle has three sides, it also has three angles. So if you divide 180 into 3 equal parts, you get 60° each. So technically C is correct.
Answers: A, B, and C.
This is an arithmetic series,
so
S(n) = (n/2)*(a(1)+a(n))
S(25) = (25/2)*(a(1)+a(25))
n=25
a(n) = 3n-2
a(1)= 3*1-2=1
a(1)=1
a(25) = 3*25-2=75-2=73
a(25)=73
S(25) = (25/2)*(1+73)=(25/2)*74=925
S(25)=925
Answer : 925
