The speed of light is 3x10^8 m/s. Venus is 108 million km from the Sun. Calculate the number of minutes it takes for sunlight to
1 answer:
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Answer:
1st problem: b)
2nd problem: c)
Step-by-step explanation:
1st problem:
The formula/equation you want to use is:
where
t=number of years
A=amount he will owe in t years
P=principal (initial amount)
r=rate
n=number of times the interest is compounded per year t.
We are given:
P=2500
r=12%=.12
n=12 (since there are 12 months in a year and the interest is being compounded per month)
Time to clean up the inside of the ( ).
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2nd Problem:
Compounded continuously problems use base as e.
P is still the principal
r is still the rate
t is still the number of years
A is still the amount.
You are given:
P=2500
r=12%=.12
Let's plug that information in:
.
Answer:
Step-by-step explanation:
To write the quadratic equation, begin by writing it in vertex form
Where (h,k) is the vertex of the parabola.
Here the vertex is (-2,-20). Substitute and write:
To find a, substitute one point (x,y) from the parabola into the equation and solve for a. Plug in (0,-12) the y-intercept of the parabola.
The vertex form of the equation is .
You can convert this into standard form by using the distributive property.