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rosijanka [135]

3 years ago

8

If $10,000 is placed in an investment paying 4.8% yearly interest compounded annually, how long will it take for the account to

double?

1 answer:

vaieri [72.5K]3 years ago

4 0

Answer:

15 years.

Step-by-step explanation:

We have the equation:

20000 = 10000(1 + 0.048)^t where t is the number of years.

1.048 t = 20000/10000 = 2

Taking logs:

t ln 1.048 = ln 2

t = ln 2 / ln 1.048

t = 14.78

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Which of the following is irrational?

dedylja [7]

Answer:

$\sqrt{2}$

Step-by-step explanation:

the other 3 are perfect squares and have rational answers.

$\sqrt{1.44} =1.2\\\sqrt{1}= 1\\\sqrt{4} =2$

6 0

2 years ago

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MissTica

Answer: 7
7 is the middle number when the number are out from least to greatest. Hope that helps!!

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2 years ago

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Algebra!!!<br> 3 Questions Only take if you know ALL Answers<br> PLZZZ QUICK

vitfil [10]

Answer:

1. -7.5

2. $1

3. 40

Step-by-step explanation:

For number 1, it can be solved by using the PEMDAS method, or see explanation below:

6x - 4x - 36 = 6 - 2x

2x - 36= -2x + 6

4x + 36 = 6

4x = -30

x = -15/2 or -7.5

For number 2, substitute 3 into both equations:

f(x) =1.50(3) + 2.00

and

f(x) = 2.00(3) + 1.50

This would get $6.50 and $7.50, which, if subtracted, gets $1.

For number 3, do something similar to the previous problem. Substitute 3 for x. It would be 5(2^3), or 40.

Hope this helps!

7 0

3 years ago

Which expression is the factorization of x2 + 10x + 21?

maxonik [38]

Answer:

(x + 3)(x + 7)

Step-by-step explanation:

Find two numbers that when added up to , they ALSO have to multiply up to 21. This is simple because of the fact that there is no leading coefficient greater than 1⃣.

7 0

3 years ago

Emma and Kyle combine their eamings to pay their

guapka [62]

<h2>Hello!</h2>

The answer is:

The second option,

b.) $C(x)=40.60x+201$

<h2>Why?</h2>

We are given the functions E(x) and K(x), since they both are function of the same variable, we need to add them in order to find the correct option.

From the statement we know the functions:

$E(x)=22.75x+74$

and

$K(x)=17.85x+127$

So, adding the functions we have:

$C(x)=E(x)+F(x)$

$C(x)=(22.75x+74)+(17.85x+127)$

$C(x)=22.75x+17.85x+74+127$

$C(x)=40.60x+201$

Hence, the answer is the second option,

b.) $C(x)=40.60x+201$

Have a nice day!

6 0

3 years ago