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guajiro [1.7K]
3 years ago
10

Please help a girl out!! really confused

Mathematics
1 answer:
Flura [38]3 years ago
5 0

Answer:14

Step-by-step explanation:To find the mean first add everything together and that will give you 84 then divide the total amount with the total amount of number  which is 6 and your answer is 14.

Step one:20+18+16+15+12+3=84  Step two:find the total amount of numbers which is 6.   Step three:divide 84÷6=14

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Rewrite the product (x-3)^2 in standard form. Show your work
arsen [322]

Answer:

x² - 6x + 9

Step-by-step explanation:

(x - 3)²

= (x - 3)(x - 3)

Each term in the second factor is multiplied by each term in the first factor

= x(x - 3) - 3(x - 3) ← distribute both parenthesis

= x² - 3x - 3x + 9 ← collect like terms

= x² - 6x + 9 ← in standard form

8 0
3 years ago
The measures of the three angles are 45°, 75°, and 60°. how many triangles can you make
Naddika [18.5K]

Answer:

1 Triangle

Step-by-step explanation:

By adding all these 3 angle measures (45°, 75°, 60°) we are getting 180° in sum. And as we know that normal triangle has 180° , so that it equal only to one triangle.

8 0
3 years ago
X = 5y/(z-4y) <br><br> make y subject
Margarita [4]

Answer:

y=2x/5-4x

Step-by-step explanation:

multiply z-4y on both sides,match the Ys together and then make y common

3 0
2 years ago
P=2x^2+22x+328
Hatshy [7]

Answer:

The year is 1984 ?

6 0
3 years ago
PLEASE ANSWERERRREEERRR
Vladimir79 [104]

the operation:

2*10^1 - 4*10^0 = 20 - 4 = 16

Gives a square number.

<h3>How to get a perfect square?</h3>

A perfect square is the product of a number and itself.

As you can see in the example, 16 is a square number. Then let's try to get 16.

To get 16 we can use the difference:

20 - 4

So the first therm needs to be equal to 20, and the second equal to 4.

To write 20 in scientific notation we have:

2*10^1

To write 4 in in scientific notation:

4*10^0

Then the operation:

2*10^1 - 4*10^0 = 20 - 4 = 16

Gives a square number.

If you want to learn more about square numbers:

brainly.com/question/21694652

#SPJ1

5 0
2 years ago
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