3 years ago

Which of the following is equivalent to the expression below? 42^x/6^x

Mathematics

1 answer:

Tasya [4]3 years ago

4 0

The answer is D because 42 / 6 = 7 and the power ( ^X) can cancel out each other

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Q7Which statement is incorrect for the graph of thefunction y = -5 cosGcos( 3 (x – 3)) +62The period is 4.The amplitude is 3.The

guajiro [1.7K]

The given function is,

$y=-5\cos (\frac{\pi}{2}(x-3))+6$

The graph can be drawn as,

The period will be distance between two consequetive maximas,

$\text{Period}=1-(-3)=4$

Thus, period is correct.

The amplitude can be determined as,

$\begin{gathered} Amplitude=\frac{\max -\min }{2} \\ =\frac{11-1}{2} \\ =5 \end{gathered}$

Thus, amplitue is incorrect.

The range is,

$y\in\lbrack1,11\rbrack$

Thus, the range is correct.

The midline is,

$\begin{gathered} \text{midline}=\frac{\max +\min }{2} \\ =\frac{1+11}{2} \\ =6 \end{gathered}$

Thus, the midline is correct.

Thus, option (b) is the solution.

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1 year ago

16x -7<-71<br><br><br> Please Help

saw5 [17]

Answer:

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Step-by-step explanation:

$16x - 7 < - 71 \\ 16x < - 71 + 7 \\ 16x < - 64 \\ x < - 4$

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2 years ago

Harlow can bicycle at a rate of 18 miles per hour.How many hours would it take him to bicycle a stretch mark of road that is 450

FromTheMoon [43]

Answer:

8100 Hours

Step-by-step explanation:

We all have heard of miles per hour, so just plug that formula into the question!

Ex. 18 miles PER HOUR x 450 MILES = 8100 hours

Hope this helps!

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3 years ago

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Zepler [3.9K]

Answer: I cant see the full question but I would say figure D

Step-by-step explanation:

30/20 in half is 15/10

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$5.69 Discount $13.27

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