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 .
Answer:
a. (0, -3)
Step-by-step explanation:
Put in the inputs and outputs, and see if they come out true or false.
a.
x - 3y ≥ 4
0 - 3(-3) ≥ 4
0 + 9 ≥ 4
9 ≥ 4
True.
b.
x - 3y ≥ 4
0 - 3(5) ≥ 4
0 - 15 ≥ 4
-15 ≥ 4
False.
c.
x - 3y ≥ 4
-4 - 3(-1) ≥ 4
-4 + 3 ≥ 4
-1 ≥ 4
False.
d.
x - 3y ≥ 4
2 - 3(3) ≥ 4
2 - 9 ≥ 4
-7 ≥ 4
False.
Answer: D
Step-by-step explanation:
Answer:
Step-by-step explanation:
- 4x - 5 = - 3*(2x + 10)
- 4x - 5 = - 6x - 30
- 4x + 6x = 5 - 30
- 10x = - 25
- x = - 2.5
Answer:
A) 9x^2-12x+4
Step-by-step explanation:
to find out whether an equation is a perfect square when we take the square root of "a" and the square root of "c" and double their sum. The result should be the middle term, -12
so
square root of 9; 3
square root of 4: 2
2((3*-2))=-12
now we can take the square root of 9x^2(which is 3x) and the square root of 4(-2) and put it in a expression like this
(3x-2)^2
hope this helps!