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2 years ago

7

4. Spencer and Sydney both have many books at home. Together they have 65 books. Spencer has 9 fewer books than Sydney. How many

books does Spencer have? 28 O 74 27 O 37

1 answer:

AlekseyPX2 years ago

7 0

Answer:

they are both reading book;

Step-by-step explanation:

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What happens to the mode of the data set shown below if the number 8 is added to the data set?

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Step-by-step explanation:

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3 years ago

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3 years ago

Read 2 more answers

Assume a fair deck of playing cards. Find the probability of drawing a 10, replacing it and drawing an ace.

cupoosta [38]

Answer:

There are 52 cards in a deck. The total number of outcomes possible when picking 2 cards and replacing them is 52 * 52 = 2704.

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2 years ago

For the funtion f(x)= (x+7)^5, Find f^-1 (x)

quester [9]

Answer:

The inverse of function $f(x)= (x+7)^5$ is $\mathbf{f^{-1} (x)=\sqrt[5]{x}+7}$

Option A is correct option.

Step-by-step explanation:

For the function $f(x)= (x+7)^5$ , Find $f^{-1} (x)$

For finding inverse of x,

First let:

$y=(x+7)^5$

Now replace x with y and y with x

$x=(y+7)^5$

Now, solve for y

Taking 5th square root on both sides

$\sqrt[5]{x}=\sqrt[5]{(y+7)^5}\\\sqrt[5]{x}=y+7\\=> y+7=\sqrt[5]{x}\\y=\sqrt[5]{x}-7$

Now, replace y with $f^{-1} (x)$

$f^{-1} (x)=\sqrt[5]{x}+7$

So, the inverse of function $f(x)= (x+7)^5$ is $\mathbf{f^{-1} (x)=\sqrt[5]{x}+7}$

Option A is correct option.

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3 years ago