3 years ago

Is f(x) = x^2 - 1 a function? Why or why not?

Mathematics

1 answer:

Rudik [331]3 years ago

8 0

Answer:

Yes

Step-by-step explanation:

The function f(x) = x^2 - 1 is a quadratic due to its degree of 2. Its graph is a parabola or u-shaped graph which passes the vertical line test. This means it assigns each input a distinct output. Inputs do not repeat with different outputs. This is a function.

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16 POINTS!!! HELP ASAP

nadya68 [22]

Answer:

The answer is 358.01

Step-by-step explanation:

Given:

$3\times 10^{2}+5\times 10^{1}+8\times 10^{0}+1\times \frac{1}{10^{2}}$

Now, to solve first we crack the power notation then multiply and then do the addition:

$3\times 100+5\times 10+8\times 1+1\times \frac{1}{100}$

(The value of $10^{1}$ is 10 and the value of $10^{0}$ is 1.)

$=300+50+8+\frac{1}{100}$

$=300+50+8+0.01$

$=358.01$ .

Therefore, the answer is 358.01 .

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4 years ago

A circle has a circumference of 8 It has an arc of length 32/5

Pepsi [2]

(176/35)^c=288°

answer is 288°.

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4 years ago

Is this all correct? first one to answer is brainliest! thx (:

Afina-wow [57]

The first one is correct and the others I can't really see the picture is blurry

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4 years ago

Read 2 more answers

Which one is 25%? please help me

Vinvika [58]

So first of all you count all the blocks, so it will be 16 blocks (4x4) sideways and horizontal.

A = 16/4 marked blocks = 25%

B = 16/8 marked blocks = 50%

C = 16/6 marked blocks = ?

D = 16/10 marked blocks = 62,5%

<em>So answer would be A </em>

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3 years ago

you sold $105 worth of tickets, but you spilled soda on the record sheet and don't know how many of each tickets you sold. stude

Nina [5.8K]

5x+7y=105
There are four variants are possible
1. You sold 15 adult tickets
2. You sold 7 student tickets and 10 adult tickets
3. You sold 14 student tickets and 5 adult tickets
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3 years ago