Answer: Substances.
Step-by-step explanation:
Battery acid,
Coke,
Vinegar,
Blood,
Beer,
Soda,
Urine,
Saliva,
Eggs.
Answer:
100
Step-by-step explanation:
f(n+1)=-10 f(n)
f(1)=1
put n=1
f(2)=-10f(1)=-10×1=-10
put n=2
f(3)=-10f(2)=-10×-10=100
Step-by-step explanation:
3x(x2 + 2x – 6) + 4(x2
– 6x + 2)
Answer:
x = 8
y = 1
Step-by-step explanation:
First you want to substitute y in for 1 to get
2x + 4 = 20
Then subtract four to both sides to get
2x = 16
Then divide 2 by 16 to get
x = 8
and then plug the 8 into the original equation
2(8) + 4y = 20
And then solve for y!
The formula for a regular polygon, which this one is, is A = 1/2 ap where a is the apothem and p is the perimeter. 20.8 * 7 = 145.6 which is the perimeter, so now just multiply by 21.6 and .5. 145.6 * 21.6 * .5 = 1572.48, or B above.
