Answer:
6a^2
Step-by-step explanation:
3a(8a-6a)
=(3a)(8a+-6a)
=(3a)(8a)+(3a)(-6a)
=24a^2-18a^2
=6a^2
hope this helps :)
Answer:
C. Cardinality of set E is equal to that of O
Step-by-step explanation:
We are given that two sets
a set E of non negative even numbers
E={0,2,4,....}
A set O of non negative odd numbers
O={1,3,5,.....}
We have to choose correct option in given options
We know that
Set of non negative even numbers is countably infinite and set of non negative odd numbers is also countably infinite.
Cardinality of countably infinite set=Aleph naught=
Therefore, cardinality of E=
Cardinality of O=
Therefore, the cardinality of set E is equal to cardinality of set O.
Hence, option C is true.
Answer:
w = 20
Step-by-step explanation:
Add 18 on both sides:

Multiply by 4 on both sides:
w = 20
3.3,3.35,3.345
I hope I helped
Answer:
Angle CED must also measure 60°.
Because angle m is shown to be congruent to angles ABC and CDE, this means that angle m has a measure of 60 degrees.
There can only be 180 degrees in a triangle, so the measure of angle ACB must be 180-60-60, which equals 60 degrees.
Using the Vertical Angles Theorem, the measure of angle ACB is the same as the measure of angle CED.
Therefore, angle CED measures 60°.
Step-by-step explanation:
m, because Triangle ABC is similar to triangle EDC
m over 2, because Triangle ABC is congruent to triangle DCE
m + 60 degrees, because Triangle ABC is similar to triangle DCE
120 degrees − m, because Triangle ABC is congruent to triangle DCE