Answer:
147
Step-by-step explanation:
trust me im Really Smart GIVE ME BRAINLIST just did this question im first
Hi
arithmetic serie mean that to change from a rank to an other, you add "r"
So : if 6 is S1, and 2 is pace,
<u>then you need 8 hops to go from S1 to S9.</u>
<u> so you 'r going to add the reason 8 times. </u>
so : S9 = 6 + 8 * 2 = 6 + 16 = 22
conclusion : S9 = 22
Answer:
4
Step-by-step explanation:
2/5 is the same as 4/10
Answer:
C.) 7 and A.) 5
Step-by-step explanation:
Constants are numbers with no variable, they have no change, they are "constant"
Coefficients are the opposite, they are the numbers that are with variables and go through some sort of change
Answer:
c₁ = 1/2
c₂ = - e²/2
y = (1/2)*(eˣ - e²⁻ˣ)
Step-by-step explanation:
Given
y = c₁eˣ + c₂e⁻ˣ
y(1) = 0
y'(1) = e
We get y' :
y' = (c₁eˣ + c₂e⁻ˣ)' ⇒ y' = c₁eˣ - c₂e⁻ˣ
then we find y(1) :
y(1) = c₁e¹ + c₂e⁻¹ = 0
⇒ c₁ = - c₂/e² <em>(I)</em>
then we obtain y'(1):
y'(1) = c₁e¹ - c₂e⁻¹ = e <em>(II)</em>
⇒ (- c₂/e²)*e - c₂e⁻¹ = e
⇒ - c₂e⁻¹ - c₂e⁻¹ = - 2c₂e⁻¹ = e
⇒ c₂ = - e²/2
and
c₁ = - c₂/e² = - (- e²/2) / e²
⇒ c₁ = 1/2
Finally, the equation will be
y = (1/2)*eˣ - (e²/2)*e⁻ˣ = (1/2)*(eˣ - e²⁻ˣ)