First of all let x-1=0
x=1
Therefore,
P(x)=2x^4+4x^3-7x^2-kx+9
P(1)=2(1)^4+4(1)^3-7(1)^2-k(1)+9
2(1)+4(1)-7(1)-k+9=0
2+4-7-k+9=0
15-7-k=0
8-k=0
-k=-8
Therefore,k=8
Answer:
the answer is c
Step-by-step explanation:
not enough information
Firstly the lines around -14 mean the "absolute value" which means, ignore the sign , it will be always positive. So, 3 (14) is 42.
Now let's go for the 8-11 = -3
now when you cube this number, the result will be negative.
-3 x -3 x -3 = -27.
however, there is a negative sign outisde the brackets, so - (-27) = + 27..
so the result so far is +27 +42 = 69
Now below the line, we have 2^4 = 2 x 2 x 2 x 2 or 4 x 4 = 16 , and then -7 which is 9.
So, what we end up with is 69/9
Answer:
A, C, D, F
Step-by-step explanation:
Given the expression : (3/5)³
Recall :
a^b where, a = base ; b = exponent
In ; (3/5)^3
Base = 3/5 ; exponent = 3
Similarly ;
a^b = a in b places
(3/5)^3 = (3/5) * (3/5) * (3/5)
(3/5) * (3/5) * (3/5) = (3*3*3) / (5*5*5) = 27/125
Hence, A, C, D and F are all correct
Answer:

Step-by-step explanation:
Given


Required
Determine the volume of air
Density is calculated using:

Substitute values for Density and Mass

Convert lb to grams


Solve for Volume


Convert mL to L


Represent using scientific notation

Approximate
