ACTIVITY 3: I Challenge You! Transform the following verbal sentences into mathematical sentences, then write "LE" if
the mathematical sentence is a linear equation in one variable and "LI" if it is a linear
inequality in one variable.
1. Five increased by a number is 18.
2. The product of 7 and x is x plus 42
3. Seven times a number is at most 14.
4. Twice a number increased by 4 is 15.
5. A number decreased by 8 is less than 20.
6. The sum of a number and 5 is greater than 12.
7. Ten subtracted from thrice a number is at least 2.
8. Twice a number decreased by 9 is not less than 11.
9. Eight more than a number is twice the number minus 1.
10. Two more than five times a number results to the sum of the number and 30.​

light-year  

the distance that light travels in a vacuum in one year, equal to about 9.46 trillion km (5.88 trillion mi). light-years are used in measuring interstellar and intergalactic distances.  

parsec  

a unit of distance used in astronomy, equal to about 3.25 light years (3.08 × 1016 meters).  

parallax  

the apparent angular displacement of a celestial body due to its being observed from the surface instead of from the center of the earth (diurnal parallax or geocentric parallax) or due to its being observed from the earth instead of from the sun (annual parallax or heliocentric parallax)  

absolute magnitude  

the magnitude (brightness) of a celestial object as it would be seen at a standard distance of 10 parsecs.  

apparent magnitude  

the magnitude of a celestial object as it is actually measured from the earth.  

redshift  

an increase in the wavelength of radiation emitted by a celestial body as a consequence of the doppler effect.  

the great thing about your imagination is that it doesn't have to make sense! if i were you i would be stuck in space, no communication with earth travelling around and around, you can only guess how long its been since your communication broke down. you land on an undiscovered planet, you do a scientific investigation examining the elements and conditions. you come across alien lifeforms.  

best of luck!

i think the answer is b or c.

by: nicholas dooley