Answer:
6(z+9)
ANSWER: 6z+54
z=9
Step-by-step explanation:
mm, im sorry they didn't answer this yesterday
B. centimeters i think it would be
Answer:
1. 1:2
2. x=12
3. $25:$20
4. 15 cats
5. 16 t
6. p=4
7. $15/6 = 2.50
8. 10/5=2 8/2=4 x=4
8b. 8:10=4:5
9. 270/3=90=1 person 90 x 10=$900
you need $900 to bring 10 people on the fishing trip.
Step-by-step explanation:
3. 75/3=25 100/5=20
Answer:
y=-sqrt(x^2+9)
Step-by-step explanation:
This problem can be solved with the help of separating the variables.
dy/dx=x/y
Multiply both sides by y
y dy/dx=x
Multiply both sides by dx
y dy=x dx
Integrate
y^2/2=x^2/2+c
Let's find c using the condition y(0)=-3.
(-3)^2/2=(0)^2/2+c
9/2=0+c
9/2=c.
The equation is y^2/2=x^2/2+9/2.
Let's make this a bit prettier multiplying both sides by 2:
y^2=x^2+9
Taking square root of both sides gives:
y=+/- sqrt(x^2+9)
Since we want y(0)=-3, then we will choose
y=-sqrt(x^2+9).
