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Anni [7]
3 years ago
7

Evaluate the expression 7x2y, when x = 3 and y = 4. ^ The 2 is too the power of whatever x is.

Mathematics
2 answers:
alexandr402 [8]3 years ago
6 0
7x^2y \hbox{ when } x=3 \hbox{ and } y=4 \\ \Downarrow \\ 7 \times 3^2 \times 4=7 \times 9 \times 4=\boxed{252}
vredina [299]3 years ago
6 0

Answer:

The answer would be 252. I know this because I got it correct on my study guide.

Step-by-step explanation:

First I write down the problem like this...      7 (3) ² 4.

Since the # is in parenthesis I multiply 3 by the power of ² which equals to nine. (Remember, when I am multiplying 3 to the power of ² I do not multiply 3 times 2. I multiply 3 by itself 2 times. 3 x 3 = 9. I think you get the point.)

Now, you write it like this.... 7 x 9 x 4. All you have to do know is multiply. You can start anyway you like. If I multiply 9 x 4 first that equals 36. 36 x 7 gives me 252.

The same thing is the other way around. If I multiply 7 x 9 that equals 63. 63 x 4 also equals 252!

I hope this helped you. Please mark as Brainliest and let me know if I could help you with future questions. Have a Great Day Everyone!

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Round to the near at tenth <br> | 3x + 1 | =22
sdas [7]

Answer:

x =7                                    x = -7  2/3

Step-by-step explanation:

| 3x + 1 | =22

Absolute value equations have 2 solutions, one positive and one negative

3x+1 = 22                   3x+1 = -22

Subtract 1 from each side

3x+1-1 =22-1               3x+1-1 = -22-1

3x= 21                         3x = -23

Divide each side by 3

3x/3 = 21/3                      3x/3 = -23/3

x =7                                    x = -7  2/3

6 0
4 years ago
I got the table part but can someone explain why is the function relate to the graph for me? Please and thank you! ^.^
Rufina [12.5K]
Well for each pair of x and y value of the table, you can always find the coordinates of that point on the graph.
eg. x=y=-2 you can find the point {-2,-2} on the graph
6 0
3 years ago
Help with the answer please
Studentka2010 [4]

Answer:

A is the answer

Step-by-step explanation:

I hope it helps sorry kung mali

5 0
3 years ago
Read 2 more answers
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mel-nik [20]

Answer:

0.916 or 229/250

Step-by-step explanation:

divide 11 by 12

6 0
3 years ago
How many ways can a president and vice-president be chosen from a committee of 6 people?
Citrus2011 [14]

Answer:

  30

Step-by-step explanation:

There are 6 ways the president can be chosen. Assuming the vice-president must be a different person, there are then 5 possibilities for that office. The total number of possible choices is ...

  6 × 5 = 30

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Each of the 6 president choices can have any of 5 different vice-president choices.

3 0
4 years ago
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