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eduard
3 years ago
9

Is 3x to the power of 2 a function ?

Mathematics
2 answers:
OleMash [197]3 years ago
4 0

Answer:

No

Step-by-step explanation:

Because in a function for every one x there is one y.

mrs_skeptik [129]3 years ago
3 0

Answer:

YES.

Step-by-step explanation:

f(x) = 3x^2.

This is a parabola which opens upwards ( roughly U shaped) so it will pass the vertical line test and is a function.

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1. Suppose you take a coin and flip it 4 times in a row. After each flip you record whether the coin landed heads or tails. What
bekas [8.4K]

Answer:

25%

Step-by-step explanation:

Great question, since a regular coin has two sides one heads and one tails. That gives us a 50% probability of it landing on either side of the coin. Since we would like to know the probability of getting 2 heads in a row, we would need to multiply the probability of the first toss landing on heads with the second toss landing on heads, like so...

\frac{1}{2} *\frac{1}{2} =\frac{1}{4}

So we can see that the probability of us getting two heads in a row is that of \frac{1}{4}[/tex] or 25%.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

4 0
3 years ago
Sarah had invested $800 in a savings account that paid 4.2% interest compounded annually. How much money was in the account afte
schepotkina [342]

Answer:  $943.11

<u>Step-by-step explanation:</u>

Compound Interest formula is:   A=P(1+r)^t     where

  • A is the Accrued amount (total earned)
  • P is the Principal (amount initially invested)
  • r is the interest Rate (convert percent to a decimal)
  • t is the Time (number of years)

It is given that; P = 800    r = 4.2% (0.042)       t = 4

A = 800(1 + 0.042)⁴

A = 800(1.042)⁴

A = 943.106   →   A = 943.11 (rounded to the nearest penny)

Sarah invested $800 for four years at an interest rate of 4.2% and accrued $943.11

5 0
3 years ago
Which choice is equivalent to the expression below?<br> -81
mixas84 [53]

Answer:

Well, The expression -81 is equal to -81.

Step-by-step explanation:

-81=-81

7 0
3 years ago
Please Help !!!!
swat32
The answer is A. Here's the equation graphed and shows why the answer is A

8 0
2 years ago
Ashley and her two sisters decide to split the cost of a new DVD player for their playroom. the DVD player cost $57 after tax. B
Shkiper50 [21]
$19 dollars from each sisters bank account
6 0
3 years ago
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