Answer:
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Step-by-step explanation:
The given question is :
8 = 4 * 2
32 = 16 * 2
![\sqrt{8} =\sqrt{4*2} = 2\sqrt{2} \\\sqrt{32} =\sqrt{16*2} =4\sqrt{2}](https://tex.z-dn.net/?f=%5Csqrt%7B8%7D%20%3D%5Csqrt%7B4%2A2%7D%20%3D%202%5Csqrt%7B2%7D%20%5C%5C%5Csqrt%7B32%7D%20%3D%5Csqrt%7B16%2A2%7D%20%3D4%5Csqrt%7B2%7D)
∴
=
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Answer:
y=9-7x
If x= -1, y=16
If x= 0, y=9
If x=2, y= -5
Step-by-step explanation:
Because you are solving the equation for y, you want to have y by itself on one side. The only way to do that in this problem is by subtracting the 7x on both sides.
y+7x=9
-7x -7x ---> y=9-7x
The next part of the question says to find the value of Y for each value of X. Using the given X values, we plug them into the equation we just got in order to find Y.
y=9-7(-1) ----> y=16
y=9-7(0) ----> y=9
y=9-7(2) ----> y=-5
Answer:
c(10)=40
c(15)=52.5
Step-by-step explanation:
c(10) means you plug 10 into your x same with (c15) you plug in 15 so for c(10) it would be 2.5(10) + 15 which is 40
Answer:
19
Step-by-step explanation:
y=2×8+3
=16+3=19
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Answer:
![S=\dfrac{(N+F)}{(P-V)}](https://tex.z-dn.net/?f=S%3D%5Cdfrac%7B%28N%2BF%29%7D%7B%28P-V%29%7D)
Step-by-step explanation:
The given equation is :
N=S(P-V)-F ...(1)
We need to solve the above equation for S.
Adding F both sides in equation (1)
N+F=S(P-V)-F+F
N+F=S(P-V)
Dividing both sides by (P-V). So,
![\dfrac{(N+F)}{(P-V)}=\dfrac{S(P-V)}{(P-V)}\\\\S=\dfrac{(N+F)}{(P-V)}](https://tex.z-dn.net/?f=%5Cdfrac%7B%28N%2BF%29%7D%7B%28P-V%29%7D%3D%5Cdfrac%7BS%28P-V%29%7D%7B%28P-V%29%7D%5C%5C%5C%5CS%3D%5Cdfrac%7B%28N%2BF%29%7D%7B%28P-V%29%7D)
So, the above is the expression for S.