Kepler-452b has a probable mass five times that of Earth, and its surface gravity is nearly twice as Earth's, though calculations of mass for exoplanets are only rough estimates. If it is a terrestrial planet, it is most likely a super-Earth with many active volcanoes due to its higher mass and density.Step-by-step explanation:

5 0

3 years ago

Which kind of material is used to make the positive electrode of a dry cell? A. Steel cover. B. Carbon rod C. Electrolyte paste

uysha [10]

A dry cell is usually made of two parts: a zinc can which serves as the anode with a negative potential and inert carbon rod is the positive cathode.
According this definition, carbon rod is used to make the positive electrode of a dry cell.
Correct answer: B

6 0

4 years ago

Don has an album that holds 900 coins . Each page of the album holds 9 coins . If 78% of the album is empty, how many pages ar

laila [671]

Answer: 22% of the pages are filled up

Step-by-step explanation: 900/9= 100 78% of 100 is 78

22+78=100 therefore reaching 100 percent. since 78% is empty that means 22% is being used.

3 0

3 years ago

is (x-2) a factor of f(x) = x^3 − 2x^2 + 2x + 3, use either remainder theorem or factor theorem to explain your reasoning

aliya0001 [1]

Answer:

Step-by-step explanation:

x-2=0

x=2

f(2)=2³-2(2)²+2(2)+3=8-8+4+3=7≠0

so x-2 is not a factor of f(x).

6 0

4 years ago