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Romashka [77]
2 years ago
6

In 2008, the price of a gallon of unleaded gasoline was $4.02. In 1990, it was only $1.37 per gallon. What is the increase expre

ssed as a percent change? Round to the nearest percent.
A. 66%
B. 393%
C. 193%
D. 134%
please i need help'
...?
Mathematics
1 answer:
liubo4ka [24]2 years ago
6 0
First get the difference between the 2008 price and 1990 which is $4.02-$1.37= $2.65. Then the difference you've got which is $2.65, divide it to the current market price which is $4.02 to get the how many percentage it increased since then, $2.65/$4.02= 0.65920398 then multiply it to 100. It would be 65.92 or 66% if rounded off to whole number.
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People at the state fair were surveyed about which type of
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Answer:

Step-by-step explanation:

You would require the table with the number of males and females who prefer either pink or yellow lemonade at the state fair.

                      Pink Lemonade         Yellow Lemonade       TOTAL

 

Male                    156                                104                          260

 

Female                  72                               48                          120

 

TOTAL                 228                               152                         380

P(pink lemonade | female) = 72 / (48 + 72) = 72 / 120 = 0.6

P(pink lemonade) = (156 + 72) / (156 + 72 + 104 + 48) = 228 / 380 = 0.6

Therefore, The event "prefers pink lemonade" and "female" are independent because P(pink lemonade | female) = P(pink lemonade) = 0.6

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2 years ago
Jackson and his children went into a movie theater and where they sell bags of popcorn for $6.50 each and candies for $4 each. J
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Answer:

There are no possible solutions for this question.

Step-by-step explanation:

3 0
2 years ago
Estimate the value of 9.9 squared x 1.79
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9.9^2X1.79
9.9^2=98.01
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2 years ago
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The center of a hyperbola is (−2,4) , and one vertex is (−2,7) . The slope of one of the asymptotes is 1/2 .
maxonik [38]

Answer:

<h2>The equation is \frac{(y - 4)^{2} }{9 } - \frac{(x + 2)^{2} }{36 } = 1.</h2>

Step-by-step explanation:

The equation of a hyperbola is represented by \frac{(y - k)^{2} }{b^{2} } - \frac{(x - h)^{2} }{a^{2} } = 1, where (h, k) is the center of the hyperbola.

As per the given condition, h = -2 and k = 4.

Thus, the equation becomes \frac{(y - 4)^{2} }{b^{2} } - \frac{(x + 2)^{2} }{a^{2} } = 1.

One vertex is (-2, 7).

Hence, putting x = -2 and y = 7, we get b^{2} = 9.

The slope of the asymptote is \frac{b}{a}.

Hence, \frac{b^{2} }{a^{2} } = \frac{1}{4} \\a^{2} = 36.

Thus, the equation is \frac{(y - 4)^{2} }{9 } - \frac{(x + 2)^{2} }{36 } = 1.

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2 years ago
Triangles A B C and X Y Z are shown. Which would prove that ΔABC ~ ΔXYZ? Select two options. StartFraction B A Over Y X = StartF
sergejj [24]

Answer: Answer is 3

BC        6

------ = ------

XY         3

Step-by-step explanation:

The statements below can be used to prove that the triangles are similar.

On a coordinate plane, right triangles A B C and X Y Z are shown. Y Z is 3 units long and B C is 6 units long.  

A B Over X Y = 4 Over 2

?  

A C Over X Z = 52 Over 13  

△ABC ~ △XYZ by the SSS similarity theorem.

Which mathematical statement is missing?

1.   Y Z Over B C = 6 Over 3  

2.  ∠B ≅ ∠Y

3.  B C Over Y Z = 6 Over 3  

4.  ∠B ≅ ∠Z

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2 years ago
Read 2 more answers
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