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Maru [420]
3 years ago
10

Please help for number 25

Mathematics
1 answer:
Phantasy [73]3 years ago
8 0
The correct answer is:  [C]:  " inverse variation;  xy = 40 " .
__________________________________________________
Explanation:
______________________________________________
Examine the table given, and plug in the value:
_______________________________________
In the equation for Answer choice: [C]:  " xy = 40 ".

When x = 1 , y = 40.

xy = 40 ;  1*40 = 40.  Yes.

When x = 2, y = 20.

xy = 40;  2*20 = 40.  Yes. 

When x = 5, y = 40.

xy = 40.  8* 5 = 40.  Yes.

When x = 10, y = 4.

xy = 40.  10*4 = 40. Yes.
_______________________________________
So the equation makes sense ;
 
"inverse variation;  xy = 40".
________________________________________
since; "xy = 40" ; which is "answer choice: [C]".
________________________________________
     We know that the other choices do NOT make sense; if we plug in any of the corresponding x and y values for any of the equations provided in any of the other answer choices, the equations will not equal, and as such, the answer choices are incorrect.
_________________________________________ 
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anzhelika [568]

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A <em>semicircle</em> is a <u>part</u> of a <u>circle</u>, and it is referred to as <em>half </em>of a given <em>circle</em>.

such that:

<em>Area</em> of a <u>circle</u> = \pi r^{2}

and

area of a <u>semicircle</u> = \frac{\pi r^{2} }{2}

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Thus from the given question, it can be inferred that;

r = \frac{50}{2}

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r = 25 in

Thus, the area of the<em> semi-circle</em> can be determined as;

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for more clarifications on the area of a semi-circle, visit: brainly.com/question/15937849

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8 0
2 years ago
What is the greatest common factor of 3, 53, 73 and 74?
Annette [7]
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4 0
3 years ago
gavin deposited $1500 into his savings account that is compounded quarterly at an interest rate of 1.5%. How munch money will ga
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<u>Answer:</u>

The money will gavin have after 5 years is 1616.59$

<u>Explanation:</u>

We know that compound interest is given by  

A=P\left(1+\frac{r}{n}\right)^{n t}

          Where A = final amount

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r  = interest rate = 1.5% = 0.015

n = no. of times interest applied per time period = given quarterly = 4

t = time period = 5 years  

    So,

A=1500\left(1+\frac{0.015}{4}\right)^{4 \times 5}

1500\left(1+\frac{0.015}{4}\right)^{20}

 = 1616.59$ which is the money will gavin have after 5 years

4 0
3 years ago
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