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hram777 [196]
2 years ago
7

Amanda has an envelope that is 2 1/4 inches tall. The envelope is 4 1/3 times as long as it is tall. How long is her envelope?

Mathematics
1 answer:
Sidana [21]2 years ago
4 0

Answer:

its 2 1/2 its width

Step-by-step explanation:

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Maurice spent 1/2 of his money on lunch. He had 2.50 left.<br> How much money did he start with?
OverLord2011 [107]

Answer:

5.0

Step-by-step explanation:

1÷2=2.5

1=2.50×2

=5.0

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A suit cost $95 Barry has a discount coupon for 10 %off and the city has 4.5%sales tax .what is the final cost of the suit?
torisob [31]
The final price would be 89.35
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3 years ago
The circumference of one of the smaller circles is 12pie cm. Find the circumference of the larger circle.. . A. 12pie cm. B. 24p
Temka [501]
There exists a similar question that would lead to the relationship of the given circumference to the unknown value. The radius of the larger circle is 12 cm. The formula for determining the circumference is,
                                  C = 2πr
Substituting the known value,
                                    C = 2π x 12 cm = 24π cm
Thus, the answer is letter B. 
4 0
3 years ago
Which expression is equivalent to x^4 + 4x^2 - 45?
Nikitich [7]

Answer:

( {x}^{2}  - 5)( {x}^{2}  + 9) = 0

Step-by-step explanation:

The given expresion is

{x}^{4}  + 4 {x}^{2}  - 45 = 0

We can rewrite this as:

({ {x}^{2}) }^{2}  + 4 {x}^{2}  - 45 = 0

We obtained a quadratic equation in x²

Let us split the middle term to get:

({ {x}^{2}) }^{2}  + 9 {x}^{2}  -  5{x}^{2}  - 45 = 0

We factor by grouping to get:

{x}^{2} ( {x}^{2}  + 9) - 5( {x}^{2}  + 9) = 0

We factor further to get:

( {x}^{2}  - 5)( {x}^{2}  + 9) = 0

The correct answer is A.

6 0
2 years ago
Brainliest if correct
Ivan
The answer is 20x-4, hope this helps.
3 0
2 years ago
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