Answer:
7(2x+3y+z)
Step-by-step explanation:
you've got to take a 7 out of each phrase
so 14x/7= 2x
21y/7= 3y
7z/7= z
So 7(2x+3y+z)
The value of t is 3/2 or 1.5
<u>Step-by-step explanation</u>:
The given expression is 17/20 equals t plus -13/20.
<u>Changing it into an equation form :</u>
⇒ t + (-13/20) = 17/20
Keeping t alone on one side and constant terms to the another side,
t = (17/20) + (13/20)
Since the denominators are same, it is easy to simplify those fractions.
⇒ t = (17+13)/20
⇒ t = 30/20
⇒ t = 3/2
⇒ t = 1.5
The solution is t= 3/2 or t= 1.5
A is true : you can only take the square root of an even power
B is true: you cannot have a trinomial, only binomial or two terms
C is FALSE: you cannot take a square root of a negative and get a real number
B. a and b
Answer:
A solar panel is the best way to transform electrical energy into other forms of energy
Answer: Last option.
Step-by-step explanation:
Observe the diagram.
The perimeter of the parallelogram will be the sum of the lenghts of its sides. Then:
![P=WX+XY+YZ+WZ](https://tex.z-dn.net/?f=P%3DWX%2BXY%2BYZ%2BWZ)
You know the lenght of the side WZ. This is:
![WZ=\sqrt{26}\ units](https://tex.z-dn.net/?f=WZ%3D%5Csqrt%7B26%7D%5C%20units)
Notice that:
![XY=WZ=\sqrt{26}\ units](https://tex.z-dn.net/?f=XY%3DWZ%3D%5Csqrt%7B26%7D%5C%20units)
Now, you must find the lenghts of the sides WX and YZ (
)
Observe that WZ goes from 2 to -2, therefore its lenght is:
![WX=YZ=2-(-2)=4\ units](https://tex.z-dn.net/?f=WX%3DYZ%3D2-%28-2%29%3D4%5C%20units)
Therefore, substituting values, you get that the perimeter of the paralellogram is:
![P=(4+ \sqrt{26}+4+\sqrt{26})\ units\\\\P=2\sqrt{26} +8\ units](https://tex.z-dn.net/?f=P%3D%284%2B%20%5Csqrt%7B26%7D%2B4%2B%5Csqrt%7B26%7D%29%5C%20units%5C%5C%5C%5CP%3D2%5Csqrt%7B26%7D%20%2B8%5C%20units)