3. Write an exponential equation for each coin that will give the coin's value, V, at any time, t. Use

Mathematics

1 answer:

Sloan [31]3 years ago

7 0

Answer:

Coin A : $V(t)=25(1.07)^t$

Coin B : $V(t)=40(1.05)^t$

Step-by-step explanation:

Consider the given formula is

$V(t)=P(1+r)^t$

where, P is current value, V(t) is the value of the coin in t years, and r is annual appreciation rate.

For coin A, current value is 25 dollars and annual appreciation rate is 7%.

$V(t)=25(1+0.07)^t$

$V(t)=25(1.07)^t$

For coin B, current value is 40 dollars and annual appreciation rate is 5%.

$V(t)=40(1+0.05)^t$

$V(t)=40(1.05)^t$

Therefore, the required equations for coin A and B are $V(t)=25(1.07)^t$ and $V(t)=40(1.05)^t$ respectively.

You might be interested in

What 2 numbers equal -36 when multiplied together but equal 0 when added together?

Lelu [443]

You can do that using +6 and -6 .

(6) · (-6) = - 36

(6) + (-6) = 0

7 0

3 years ago

Which postulate or theorem, if any, could be used to prove the triangles congruent? If not

inysia [295]

Question 11a)

We are given side BC equals to side CE and angle CBA equals to angle CED
We also know that angle ACB equals to angle ECD are equal (opposite angles properties)

We have enough information to deduce that triangle ABC and triangle CDE are equal by postulate Angle-Side-Angle (ASA)

---------------------------------------------------------------------------------------------------------------

Question 11b)

We are given side AB equal to side ED, side BC equals to side EF, and side AC equals to side DF
We have enough information to deduce that triangle ABC and triangle DEF congruent by postulate Side-Side-Side (SSS)

----------------------------------------------------------------------------------------------------------------

Question 11c)

We are given side AC equals to side DF, angle ABC equals to angle DEF, and angle BAC equals to angle EDF

We have enough information to deduce that triangle ABC congruent to triangle DEF by postulate Angle-Side-Angle (ASA)

-----------------------------------------------------------------------------------------------------------------

Question 11d)

We do not have enough information to tell whether this shape congruent or not

7 0

3 years ago

Read 2 more answers

This graph shows a proportional relationship. What is the constant of proportionality?

Vlad1618 [11]

Answer:

3/4

Step-by-step explanation:

there is no y intercept but it is 3/4 when you simplify

4 0

3 years ago

3) Our next presidential election is in