Since the polys are similar, the following equation of ratios is true:
7/8 = x/3. Cross multiplying produces 21=8x, and so x = 21/8 (answer)
Answer:
-14p^3+10p^2+4p = 2p (-7p^2+5p+2)
Step-by-step explanation:
-14p^3+10p^2+4p
14=2*7
10=2*5
4=2*2
-14p^3+10p^2+4p = -2*7p^3+2*5p^2+2*2p
The gratest common factor is 2p:
-14p^3+10p^2+4p = 2p [-2*7p^3/(2p)+2*5p^2/(2p)+2*2p/(2p)]
-14p^3+10p^2+4p = 2p [-7p^(3-1)+5p^(2-1)+2]
-14p^3+10p^2+4p = 2p (-7p^2+5p^1+2)
-14p^3+10p^2+4p = 2p (-7p^2+5p+2)
Answer:
Step-by-step explanation:
sin²β + cos²β = 1
sin²β = 1 - ( - 
)²
sin²β = 1 - 
= 
sin β > 0 ( Q. ll )
sin β =
15 postcards, 10
envelopes, and a notepad cost------------------- 1.68 dolars
Postcards------------x
Envelopes------------y
Notepad--------------z
15x+10y+z=1.68
<span>Y=z/8 y=0.02+x</span>
<span>Z=8y x=y-0.02</span>
15(y-0.02)+10y+8y=1.68
15y-0.30+18y=1.68
<span>33y=1.98 y=0.06</span>
Z=8*0.06=0.48
X=0.06-0.02=0.04
Costs
Postcards------------0.04
dolars/ 4 cents
Envelopes------------0.06
dolars/ 6 cents
<span>Notepad--------------0.48
dolars/ 48 cents</span>
