Answer:
1)18x
2)4x-3y+9z
i hope this helps
use math -
way to do the ones you dont know
Step-by-step explanation:
7.7278 g/ml is the most accurate density of the substance.
<h3>What is density?</h3>
It is define as the quantity per unit volume, unit area, or unit length.
i.e. the mass of a substance per unit volume.
Mathematically,
----- equation (1)
Where,
p is the density
m is the mass
v is the volume
According to the question,
Mass = 27.82 grams
Volume = 3.6 ml
By substituting the Value of m and v in equation 1.
![\rho =\frac{27.82}{3.6}](https://tex.z-dn.net/?f=%5Crho%20%3D%5Cfrac%7B27.82%7D%7B3.6%7D)
![\rho = 7.7277777 g/ml](https://tex.z-dn.net/?f=%5Crho%20%3D%207.7277777%20g%2Fml)
Therefore,
The most accurate density of the substance in g/ml is 7.7277777 g/ml.
Learn more about density here:brainly.com/question/952755
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Answer:
120 degrees
Step-by-step explanation:
Since p is parallel to q, <6 and <8 are congruent because of corresponding angles.
m<8=m<6
120=m<6
Since m<8 is 120, and the two angles are congruent, the m<6 is also 120 degrees.
Answer:
![11\sqrt{2}\approx15.55](https://tex.z-dn.net/?f=11%5Csqrt%7B2%7D%5Capprox15.55)
Step-by-step explanation:
The length of the diagonal of a square of side
is
.
There are many ways to find this answer. Perhaps the simplest is to realize how acceleration relates to velocity.
a=(vf-vi)/(t2-t1)
Now for this problem we know that the ball reaches its maximum height when v=0, because this is the point when velocity is changing from positive to negative, hence it is at its highest position. And we also know that the acceleration is only cause by gravity or about -32 ft/s^2.
So in general we know that a=g=-32, vf=0, vi=64, t1=0 and t2 is the time when the ball is at its maximum height so:
a=(vf-vi)/(t2-t1) becomes
g=-vi/t2
t2=-vi/g
t=-vi/g, and in this case
t=-64/-32
t=2 seconds
In general for any quadratic of the form ax^2+bx+c=y, the x-coordinate of the vertex, which is the point of either an absolute minimum or maximum for the quadratic:
x=-b/(2a)
Which again we can see in this case is:
t=-64/(2*-16)
t=-64/-32
t=2 seconds