Answer:
The tree was 40 in tall when planted
The tree's growth rate is 10in per year
Ten years after Planting, it is 140 inches tall
Step-by-step explanation:
original(slope intercept form) : y = 10x + 40
y = 10(10) + 40
y = 100 + 40
y = 40
Answer:
3x - 6x - 7 = 29 <u>Given</u>
<u>-----------------------------------</u>
3x - 6x -7 = 29
+ 7 + 7 <u>Addition property of equality</u>
3x - 6x = 36
<u>--------------------------------------------------------------</u>
3x - 6x = 36
<u>(</u>3x + -6x) = 36 <u>Combine like terms</u>
-3x = 36
<u>--------------------------------------------------------------</u>
-3x = 36
(-3x = 36)/ -3 <u>Division property of equality</u>
x = -12
<u />
Step-by-step explanation:
I tried to seperate the steps so you can go through them. First you had to add on both sides to take out the like terms, then combine the 3x and the -6x to make -3x (easier to look at and divide), and finally divide to find X. the end product using X cannot be a negative because its a filler space for a real number.
Hope this helps :)
Volume=length times width times height
this should be easy
a.
the volume of a box is 2.5 times 1 times 1 or 2.5 cubic meters
b.
number of boxes times volume per box=volume of container
number of boxes=volumecontainer/volumebox
find volumecontianer
volumecontainer=5 times 2 times 3=30 cubic meters
number of boxes=30/2.5
number of boxes=12
12 boxes needed to fill container
c.
box
1m=100cm
1m by 1m by 2.5m convert so (times everybody by 100)
100cm by 100cm by 250cm
multiply
2,500,000 cubic centimeters
If you add them straight down:
2d-e = 7
d + e = 5
Then the e's cancel out.
You are left with 3d = 12
Then solve for d by dividing each side by 3.
Now you have d =4.
To solve for e go back into one of your original equations and substitute 4 for the d.
You can use either equation, so I'll choose the second one.
4 + e = 5
Now solve for e by subtracting each side by 4.
Now you have e = 1.
So your solutions are d = 4 and e = 1
Write 4 as a sum (8h-3j)^2+2
Use a m+n=a m•a n to expand the expression
(8h-3j)^2 x (8h-3j)^2
Use (a-b)^2= a^2... -2ab+b^2 to expand the expression
(64h^2 - 48hj+ 9j^2)x(64h^2 - 48hj+ 9j^2)
Multiply the parentheses and after you get your answer you collect like terms.
Your answer should be:
4096h^4 - 6144h^3j + 3456h^2j^2 - 864hj^3 +81j^4
