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3 years ago

Let f be defined as shown. What is f^-1(1)?

Mathematics

1 answer:

FinnZ [79.3K]3 years ago

6 0

Answer:

From the above image when the input of f(x) is 9 the output is 1

So f^-1(1) is just the reverse when the input is 1 the output is 9

So f^-1(1) = 9

Hope this helps

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The radius of your earth model is 9cm. what is the surface area

Lapatulllka [165]

The surface area formula is 4 x pi x r^2

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2 years ago

Which statements are true about the graph?

lianna [129]

Answer: The graph shows exponential decay

The graph shows y = 2^x reflected over the y-axis

Step-by-step explanation:

When 0<b<1 , the graph shows exponential decay. In this case, b was equal to 1/2 as shown by the graph alongside the question. Therefore, the graph shows exponential decay.

The graph of y = 2^x would show a reflection of y = 1/2 ^x over the y-axis, therefore the graph shows y = 2^x reflected over the y-axis.

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3 years ago

Read 2 more answers

If (ax+2)(bx+7)=15x2+cx+14 for all values of x, and a+b=8, what are the 2 possible values fo c

dolphi86 [110]

Given:

$(ax+2)(bx+7)=15x^2+cx+14$

And

$a+b=8$

Required:

To find the two possible values of c.

Explanation:

Consider

$\begin{gathered} (ax+2)(bx+7)=15x^2+cx+14 \\ abx^2+7ax+2bx+14=15x^2+cx+14 \end{gathered}$

$\begin{gathered} ab=15-----(1) \\ 7a+2b=c \end{gathered}$

And also given

$a+b=8---(2)$

Now from (1) and (2), we get

$\begin{gathered} a+\frac{15}{a}=8 \\ \\ a^2+15=8a \\ \\ a^2-8a+15=0 \end{gathered}$ $a=3,5$

Now put a in (1) we get

$\begin{gathered} (3)b=15 \\ b=\frac{15}{3} \\ b=5 \\ OR \\ b=\frac{15}{5} \\ b=3 \end{gathered}$

We can interpret that either of a or b are equal to 3 or 5.

When a=3 and b=5, we have

$\begin{gathered} c=7(3)+2(5) \\ =21+10 \\ =31 \end{gathered}$

When a=5 and b=3, we have

$\begin{gathered} c=7(5)+2(3) \\ =35+6 \\ =41 \end{gathered}$

Final Answer:

The option D is correct.

31 and 41

8 0

1 year ago

A 5-pound sack of potatoes is supposed to weigh 5

TEA [102]

Answer:

t test for one mean.

met

Step-by-step explanation:

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1 year ago

A recipe for 1 batch of muffins included 2/3 cup of raisins. She made 2 1/2 batches of muffins. How many cups of raisins did she

choli [55]

Answer:

If she made 2 1/2 batches of muffins and you had 2/3 of raisins per 1 batch then you'd have a total of 1 2/3 cups of raisins

Step-by-step explanation:

1 batch= 2/3 cups

2 batches=4/3 cups or 1 and 1/3 cups

1/2 batch= 1/2 of 2/3= 1/3 cups

2 batches+1/2 batches= 1 and 1/3 cups+1/3 cups

1 and 1/3 cups+1/3 cups= 1 and 2/3 cups of raisins

3 0

2 years ago