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3 years ago

A bracelet costs $39.59. It is marked down 25%. What is the final price of the bracelet after it is marked down?

2 answers:

4 0

The final price would be 29.69

To find this answer you could simply take the $39.59 and divide it by 4. You would then get 9.8975, that is 1/4 of $39.59 AKA 25%. So then you take your 39.59 and subtract the 25%.

39.59-9.8975=29.69

I hoped this helped, k :)

Andrej [43]3 years ago

4 0

$9.90 is correct. Because if you take 39 dollars and 59 cents and times it by 25 percent. That's the answer you get.

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Rewrite the equation by completing the squares x^2-x-20

yuradex [85]

Answer: x = ¹/₂ ± √⁸¹

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Step-by-step explanation:

First write out the equation

x² - x - 20

Now we now write the equation by equating to 0

x² - x - 20 = 0

We now move 20 to the other side of the equation. So

x² - x = 20,

We now add to both side of the equation square of the half the coefficient of the (x) and not (x²) which is (1) . So, the equation now becomes

x² - x + ( ¹/₂ )² = 20 + ( ¹/₂ )²

x² - ( ¹/₂ )² = 20 + ¹/₄

( x - ¹/₂ )² = 20 + ¹/₄, we now resolve the right hand side expression into fraction

( x - ¹/₂ )² = ⁸¹/₄ when the LCM is made 4

Taking the square root of both side to remove the square,we now have

x - ¹/₂ = √⁸¹/₄

x - ¹/₂ = √⁸¹/₂

Therefore,

x = ¹/₂ ± √⁸¹

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3 0

3 years ago

How many perpendicular lines must be drawn in a triangle to prove the Law of Sines?..is it 2, 1,0, or 3..Explain

Butoxors [25]

Answer:

We show 1 to distinguish a vertex, but with laws of supplementary the answer is 2.

Step-by-step explanation:

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2 years ago

Roughly 75% of students take the bus to school. If you were to ask 9 students in your class, what is the probability that at mos

GREYUIT [131]

The probability that at most 8 of them take the bus to school is 0.925, written in percentage form this is 92.5%

<h3>How to find the probability?</h3>

We know that roughly 75% of the students take the bus, then, if we select a student at random.

There is a probability of 0.75 that the student takes the bus.
There is a probability of 0.25 that the student does not take the bus.

The probability that at most 8 out of 9 students take the bus, is equal to one minus the probability of the 9 taking the bus, which is:

p = (0.75)^9 = 0.075

Then we have:

P = 1 - 0.075 = 0.925

The probability that at most 8 of them take the bus to school is 0.925, written in percentage form this is 92.5%

If you want to learn more about probability, you can read:

brainly.com/question/251701

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2 years ago

A yacht is anchored 90 feet offshore

Stells [14]

The height of the lighthouse is 44 feet.

<u>Step-by-step explanation:</u>

You are given more information than you need.

Use the right triangle concept,

A yacht is anchored 90 feet offshore from the base of a lighthouse.

Base = 90 feet
Height = h feet

The angle of elevation from the boat to the top of the lighthouse is 26 degrees.

<u>Using one side length and the angle only: </u>

The trigonometric formula is given as,

tan = height / base

tan[26º] = h ⁄ 90

h = 90 × tan[26º]

h = 43.9 ft

h = 44 feet

Therefore, the height of the lighthouse is 44 feet.

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