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defon
3 years ago
14

What rate of interest compounded annually is required to double an investment in four years

Mathematics
1 answer:
lidiya [134]3 years ago
7 0

Answer:

18.92%

Step-by-step explanation:

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North America burned 4.5 x 1016 btu of petroleum in 1998. At this rate, how many BTU's will be burned in 9 year?
nikklg [1K]
Hello. Sonny solving this equation, multiplying 4.5 by 1016 will give us 4,572 BTU's a year. However, we are looking for the amount looking for the amount that will burn in 9 years. When you multiply 4,572 by 9, you get 41,148. 41,148 BTU's will be burned in 9 years.
4 0
3 years ago
Which of the following is equivalent to (1/2)^-2t
Zepler [3.9K]

Answer:

Choice (3) \left(2^2\right)^t is correct.

Step-by-step explanation:


Given expression is \left(\frac{1}{2}\right)^{-2t}

Now we need to simplify this and check which of the given choices best match with it.

\left(\frac{1}{2}\right)^{-2t}

=\left(\frac{1}{2^1}\right)^{-2t}

=\left(2^{-1}\right)^{-2t} {using formula =\frac{1}{x^m}=x^{-m}}

=\left(2^{-1}\right)^{-2t} {using formula =\left(x^m\right)^n=x^{\left(m\cdot n\right)}}

=2^{\left(-1\right)\left(-2t\right)}

=2^{2t}

=\left(2^2\right)^t {using formula =\left(x^m\right)^n=x^{\left(m\cdot n\right)}}

Hence choice (3) \left(2^2\right)^t is correct.

8 0
3 years ago
Read 2 more answers
Passes through (2,5) ,slope =4
Ira Lisetskai [31]
Wats the question im confused
4 0
4 years ago
I need help on these 2 questions, please and thank you!
VikaD [51]

Answer:

1.1 : C - x^2 + x - 2

1.2 : A - 4a^2 - 6b^2 + 12

Step-by-step explanation:

When we have the expression p(x) - q(x), we can substitute those functions in:

(x^2 + 2x - 5) - (x - 3)

We can distribute:

x^2 + 2x - 5 - x + 3

and then combine like terms(2x & -x, -5 & 3)

x^2 + x - 2

This is the same as C.

We can start by distributing:

a^2 - 2b^2 + 3 - 4b^2 + 5 + 3a^2 + 4

Now, we can combine all the a^2 terms(a^2 & 3a^2):

4a^2 - 2b^2 + 3 - 4b^2 + 5 + 4

Then, we can combine the b^2 terms(-2b^2 & -4b^2):

4a^2 - 6b^2 + 3 + 4 + 5

and lastly, all the constants:

4a^2 - 6b^2 + 12

This aligns with option A

5 0
3 years ago
Felicity the unicorn is in the forest. She is enjoying a delicious melon. A weasel grabs the melon out of her mouth and starts t
pshichka [43]

Answer:

21 animals in the forest

Step-by-step explanation:

The weasel

Felicity

The 19 other animals

Hope this helped

7 0
4 years ago
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