Answer:
10g/cm^3
Step-by-step explanation:
Density is calculated by dividing the mass over volume.
d = m/v ( where d is density,
m is mass and
v is volume).
In this question, the value for volume is unknown as we were only given length.
STEP 1:
so we find volume first by using the length of side given.
Volume of a cube = (length of side )^3
volume = (2cm)^3 , volume = 2cm x 2cm x 2cm = 8cm^3
STEP 2:
we put the value for volume into the density formula'
d = mass / volume
d = 80g / 8cm^3
d = 10g/cm^3
Answer:
B: -a > -b
Step-by-step explanation:
a = 1, -a = -1
b = 3, -a = -3
-1 > -3
Therefore, -a > -b
Answer: 3n+1
(no need to type in the "a_n" or "an" part, as it's already done)
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Explanation:
The first term is a1 = 4 since it is given to us
The common difference is d = 3. This is the value that we add to each term to get the next as the recursive steps shows when we write a(n) = a(n-1)+3
In other words,
nth term = [ (n-1)st term ] + 3
next term = (previous term) + 3
Using a1 = 4 and d = 3, we get the following
an = a1+d(n-1)
an = 4 + 3(n-1)
an = 4+3n-3
an = 3n + (4-3)
an = 3n+1
Good morning ^ _ ^
3x² = 5x
3x² - 5x = 0
From that part we can factorize
x(3x - 5) = 0
Set factors equal to 0
x = 0 or 3x - 5 = 0
x =0 or 3x = 0 + 5
x = 0 or 3x = 5
x = 0 or x = 5/3
The final answer is : X = 0 or X = 5/3
A+ Guaranteed!
r+2
Explanation:
because if we add 2 to r which is equal to 4 we can get 6