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Liula [17]
4 years ago
9

Find a ⋅ b.

Mathematics
1 answer:
sashaice [31]4 years ago
4 0

Answer:

Step-by-step explanation:

a.b=5(4)+2(5)=20+10=30

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A person places $686 in an investment account earning an annual rate of 3.8%, compounded continuously. Using the formula V = Pe^
kykrilka [37]

Answer:

V = $1213.03

Step-by-step explanation:

We can determine the amount of money after 15 years with the given formula:

V = Pe^{rt}   (1)

Where:

V: is the value of the account in t years =?

P: is the principal initially invested = $686                

r: is the rate of interest = 3.8% = 3.8/100 = 0.038

t: is the time = 15 years

By substituting the above values into equation (1) we have:

V = Pe^{rt} = 686*e^{(0.038*15)} = 1213.03  

               

Therefore, the amount of money is $1213.03.

I hope it helps you!  

6 0
3 years ago
What is the lcm of 42 and 70
liubo4ka [24]
The Least Common Multiple (LCM) of 42 and 70 would be 210 and u can find out how to find the LCM by doing the greatest common divisor method.
7 0
3 years ago
HURRY PLEASE!! How many sides are there in a regular polygon which has 120 degrees in each of its angeles?
N76 [4]
Number of angles = number of sides

180 - 120 = 60 (calculating the exterior angle)

360 / 60 = 6

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Hope this helps! :)
7 0
3 years ago
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Step-by-step explanation:


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4 years ago
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2. Find the value of x and y.
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Answer:

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Step-by-step explanation:

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