Answer:
12.
a.
i. (x-9)(x-3)
ii. x = 9 or 3
b. (y+10(y-10)
Step-by-step explanation:
12.
a.
i.
Two numbers that multiply to make 27 and add to make -12 are: -9 and -3.
Put into brackets so you have: (x-9)(x-3)
ii.
Consider each bracket as its own equation.
x-9=0
x=9
x-3=0
x=3
b.
Difference of two squares
5,600 the answer is 5600 and the answer is because I meant this is how I came up with the answer I had a 800 plus 808 equals 1600 and then 800% of 800 equals 1600 and then another 800 plus 800 equals a thousand six hundred and then 800 and then 800
Answer:
x=-8 then x times y coulum = x coulum answer same for if y=-9 then times x coulum =y coulum answers if y=x+5 solve for x be making y=0
Step-by-step explanation:
Start by piking the equations you want to use and put them on the lines below the box the take and put that into a table with that if it’s a x then you start with the y coulum and put -2,-1,0,1,2 ok then from their if you know what x is you times it by the y coulum and contiue to do that with all the x integers this is the same for the y integers except it’s switched. If you still don’t understand I suggest asking your teacher for help and be honest with them that you didn’t understand it.
Answer:
Does the answer help you?
Question s Incomplete; Complete question is given below;
There is a mound of g pounds of gravel in a quarry. Throughout the day, 400 pounds of gravel are added to the mound. Two orders of 900 pounds are sold and the gravel is removed from the mound. At the end of the day, the mound has 1,500 pounds of gravel. Write the equation that best describes the situation.
Answer:
The equation that best describes the situation is .
Step-by-step explanation:
Given:
Amount of gravel present initially = ''.
Now Given:
Throughout the day, 400 pounds of gravel are added to the mound.
So we can say that;
Amount of gravel after addition =
Also given:
Two orders of 900 pounds are sold and the gravel is removed from the mound.
Now Two orders of 900 pounds =
So we can say that;
Amount of gravel after removing =
Now Given:
Amount left in mount at the end of the day = 1300 pounds.
So we can say that;
Hence the equation that best describes the situation is .