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Artemon [7]
3 years ago
9

Porsha calculates the amount of money she will have at the end of 6 years on a $5,000 investment earning 3.75% interest compound

ed quarterly. She writes the following expression: Which of the following statements about Porsha's expression is true? a. Porsha's expression is correct. b. Porsha's expression should have 1 + 0.009375 in the parentheses. c. Porsha's expression should have an exponent of 6, not 24. d. Porsha's expression should have both 1 + 0.009375 in the parentheses and an exponent of 6.
Mathematics
2 answers:
stiv31 [10]3 years ago
6 0

Answer:

Its A

Step-by-step explanation:

I took the test

OLEGan [10]3 years ago
5 0
Porsha` s expression:
5,000 ( 1 + 0.0375 ) ^24
A = P * ( 1 + i  ) ^n
n = 6 * 4 = 24
i = 0.0375 : 4 = 0.009375
Porsha`s expression is wrong. True expression is:
5,000 * ( 1 + 0.009375 ) ^24
Answer: B ) Porsha`s expression should have 1 + 0.009375 in the parentheses.

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Simplify the expression. Write your answer using only positive exponents:7^6 x 7 x 7^-4
svetoff [14.1K]
The problem is asking you to simplify the exponents.  When you multiply two or more powers with the same base, the exponents can be added and subtracted.  In this case, the base is 7.

7^6*7*7^{-4}

7 can also be written as 7^1.

7^6*7^1*7^{-4} = 7 ^{(6+1-4)} = 7^3

The answer would be 7³ if you kept the exponent, or 343 if you simplified further.
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Arlecino [84]

The values in the ordered pairs of a function are swapped to define its inverse. The appropriate choice is the one that looks like ...

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6 0
3 years ago
Lydia feeds her dog everyday from the same bag of dog food. She opened a new bag that contains 52 cups of food. if her dog eats
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7 0
3 years ago
The scale factor on a scale drawing of machine part is 15 1 /8. If the part is 3 7/8 inches long as the drawing, how long is the
Marta_Voda [28]

Answer:

Option D) 58 39/64 inches​

Step-by-step explanation:

we know that

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convert to an improper fraction

15\frac{1}{8}=\frac{15*8+1}{8}=\frac{121}{8}

That means

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To find how long is the actual part for 3 7/8 inches long as the drawing

Apply proportion

First convert to an improper fraction

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\frac{121}{8}\frac{actual}{drawing} =\frac{x}{(31/8)}\frac{actual}{drawing}\\ \\x=121(31/8)/8\\ \\x=\frac{3,751}{64}\ in  

convert to mixed number

\frac{3,751}{64}\ in=\frac{3,712}{64} +\frac{39}{64} =58\frac{39}{64}\ in

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