4x² - 16 is the algebraic expression that must be added to get the result as 9x²- 2x - 5.
<u>Step-by-step explanation:</u>
The question is asked for the algebraic expression must be added to the sum of 3x²+4x+8 and 2x2−6x+3 to give 9x²- 2x - 5 as the result.
Therefore,
The first step is to find of sum of 3x²+4x+8 and 2x²-6x+3.
To find the sum :
3x²+4x+8
<u>2x²-6x+3 </u>
<u>5x²-2x+11</u>
The sum is 5x²-2x+11.
Now, the second step is to subtract 5x²-2x+11 from the result 9x²- 2x - 5.
9x²- 2x - 5
- <u>(5x²-2x+11)</u>
<u> 4x² -16 </u>
Thus, 4x²-16 is the algebraic expression that must be added with 5x²-2x+11 to get a result of 9x²- 2x - 5.
210 times 5 then divided by 3.8
so rounding up, 277 cans
Answer:
1.5 lb
Step-by-step explanation:
<em><u>Steps to determining the answer</u></em>
- calculate the lb that would be needed for 1 square foot of the garden
- Multiply the answer gotten from the above step by 250 square feet
Lb that would be needed for 1 square foot = 0.6 lb / 100 = 0.006
Lb needed for 250 square foot = 0.006 x 250 = 1.5 lb
-6(7/6)+2(1/3) -7+2/3 the answer is: -7.666666666666 (and so on
Answer:
y = 3x + 5
Step-by-step explanation:
In the interval - 2 ≤ x ≤ 0 the graph is a straight line.
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (- 2, - 1) and (x₂, y₂ ) = (0, 5) ← 2 points on the line
m = = = 3
The line intercepts the y- axis at (0, 5) ⇒ c = 5
y = 3x + 5 ← equation for - 2 ≤ x ≤ 0