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3 years ago

5

Which interval contains a local minimum for the graphed function?

2 answers:

Bad White [126]3 years ago

4 0

Maximum (-2,0)
minimum (0,2)

Karolina [17]3 years ago

3 0

The question would be SO much easier to answer if we could
SEE the graphed function, or even just its equation.

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The length of a rectangle is 3 more than twice the width. The area of the rectangle is 119 square inches. What are the dimension

ddd [48]

L = 3 + 2w

119 = w × ( 3 + 2w )
119 = 3w + 2w^2
2w^2 + 3w - 119 = 0
( w - 7 ) ( 2w + 11 ) = 0
w = 7
x = w
x = 7

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3 years ago

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Use the fact that (a^x)^y=a^xy to prove that log a^(b^y)= y•log a^b

raketka [301]

Answer:the answer is 45x

Step-by-step explanation:

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2 years ago

A square is shown below. Which expression can be used to find the area, in square units, of the shaded triangle in the square?

AlexFokin [52]

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2 years ago

Eugenia walked all the way to school at 3 mph then realized she forgot her math book (how could she?!), so she ran back at 7 mph

kondor19780726 [428]

Let us say distance between Eugenia's home and school is x miles.

Speed of Eugenia when she walked from home to school = 3 mph

Speed of Eugenia when she walked from school to home = 7 mph

Total time taken = 45 minutes or 0.75 hours

We know that the speed distance formula is given by:

$speed=\frac{distance}{time}$

$time=\frac{distance}{speed}$

Time taken by Eugenia when she walked from home to school = x/3 hours

Time taken by Eugenia when she walked from school to home = x/7 hours

Total time taken = x/3+x/7

So forming an equation we have,

$\frac{x}{3}+\frac{x}{7}=0.75$

Taking lcd of 7 and 3 as 21,

$\frac{7x}{21}+\frac{3x}{21}=0.75$

$\frac{10x}{21}=0.75$

10x=15.75

Dividing both sides by 10 , we have

x= 1.575

Answer: So we can say that the distance between Eugenia's house and school is 1.575 miles.

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3 years ago

Katarina made a frequency distribution, setting up groups for the data shown.

Tresset [83]

147 63 82 101 155 160 175 92 116 138 74 93 110 162 154 105 97

The frequency to her third group is 80 - 99.

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3 years ago