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gregori [183]
3 years ago
7

Someone, please help me with this. Correct answers get brainiest

Mathematics
2 answers:
Phantasy [73]3 years ago
7 0

Answer:

3

-3

sqrt(9)

-sqrt(9)

Step-by-step explanation:

What number multiplied by itself will give you 9

3*3 =9

-3*-3 =9

sqrt(9) * sqrt(9) = sqrt(81) = 9

-sqrt(9) * -sqrt(9) = + sqrt(81) =9

bekas [8.4K]3 years ago
7 0

Answer:

3

-  3

\sqrt 9

- \sqrt 9

Step-by-step explanation:

{x}^{2}  = 9 \\  \\ x =  \pm \sqrt{9}\\  \\ x =  - \sqrt{9}, \:x =  \sqrt{9}\\  \\   x = -   {3}  \:  \: x =  {3}

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What are the numbers
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In the polynomial function F(x)=1/2x^2+8-5x^3-19x what is the leading the coefficient
Dima020 [189]
The leading coefficient  is in the term with the highest degree.
So its -5.
8 0
3 years ago
Read 2 more answers
A couple just had twin boys, but they can’t decide between the names Mike, Mark, Peter, Paul, Sam, and Sonny. If the couple rand
Virty [35]

Answer:

The probability is 1/30 or 0.0333

Step-by-step explanation:

For calculating the probability we need to make a division between the number of ways in which the first boy born is named Sam and the second boy born is named Mark and the total number of ways in which the couple can name their children.

To calculate the total number of  ways in which the couple can name their children, we can use the rule of multiplication as:

<u>          6             </u> *  <u>            5              </u>     =    30          

First boy Born       2nd Boy Born

Because we have 6 options for the name of the first boy and 5 options for the name of the second boy.

Additionally, In just one option from this 30, the first boy is named Sam and the second is named Mark.

So, the probability is calculate as the division between 1 and 30 as:

P=\frac{1}{30} = 0.0333

3 0
3 years ago
Write a function rule for the data in the table. Determine if it's a direct variation, inverse variation or neither. Last, deter
marshall27 [118]

I'm assuming you meant to say "graph" instead of "table".

The function rule is y = x+2 because the y intercept is 2, where the graph crosses the y axis. The slope is 1 meaning we move 1 unit up and 1 unit to the right each time. You can use the slope formula to determine the slope, or simply make this observation of rise vs run.

-------------------------------

Because this line doesn't go through the origin, and because it's not in the form y = k*x, this means we do not have a direct variation equation.

We do not have an inverse variation equation either because it is not in the form y = k/x or x*y = k. A visual indication of this is that the graph isn't a curved hyperbola.

Therefore, this function is <u>neither </u>direct variation nor inverse variation

-------------------------------

Plug in y = 10 and solve for x

y = x+2

x+2 = y

x+2 = 10

x+2-2 = 10-2

x = 8

The value of x is 8

So if x = 8, then y = 10 meaning that (x,y) = (8,10) is on this blue diagonal line.

5 0
3 years ago
-8cot square A + 8 cosec square A​
zepelin [54]

Answer:

8

Step-by-step explanation:

Using the identity

cosec²A = 1 + cot²A

- 8cot²A + 8cosec²A

= - 8cot²A + 8(1 + cot²A)

= - 8cot²A + 8 + 8cot²A

= 8

7 0
3 years ago
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