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ELEN [110]
2 years ago
6

Find the number of ways 4 members from a family of 5 can line up for a photo shoot?

Mathematics
1 answer:
Ira Lisetskai [31]2 years ago
6 0
They can line up 20 different ways

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I need help on this plzzzz help me^^^
s344n2d4d5 [400]
I’m pretty sure it is B or C
6 0
3 years ago
Read 2 more answers
Help! Click to see question!
EleoNora [17]

Answer:

B.

Step-by-step explanation:

Both equations use x squared

7 0
3 years ago
Read 2 more answers
Determine if the equation below is a function with independent variable x. If so, find the domain. If not, find a value of x to
Andre45 [30]

Answer:

No because it contains points (3,4) and (3,-4).  You cannot have a x assigned to more than one y-value if you want it to be a function.

Step-by-step explanation:

A function has one output per input.

If we are trying to determine if the given is a function of x, then x is the input.

However I can get two outputs from plugging in x=3.

3^2+y^2=25

9+y^2=25

Subtract 9 on both sides:

y^2=25-9

y^2=16

Take the square root of both sides:

y=\pm \sqrt{16}

y=\pm 4.

So input x=3 yields y=4 and y=-4.

Since this input has more than one output then the given is not a function of x.

----Also!

If you graph the equation, it is a circle with radius 5 and center (0,0). So I could I plug in any number for x between -5 and 5 excluding -5 and 5 which would yield only one output each. Since plugging in either one gives:

(\pm 5)^2+y^2=25

25+y^2=25

Subtract 25 on both sides:

y^2=25-25

Simplify:

y^2=0

There is only one value y such that when you square it gives you 0. That is 0.

x=5 only gives y=0 and x=-5 only gives y=0.

There is no circle, unless it is a circle with radius 0 which means it really wouldn't be a circle, that is a function.

8 0
2 years ago
Nathan ran 2.35 miles on Tuesday and 3.15 on Thursday. What total distance did he run?
tekilochka [14]

Answer:

5.5 miles

Step-by-step explanation:

2.35 + 3.15 =5.5

3 0
2 years ago
Or yk dont answer my question thats coo :/
san4es73 [151]

Answer:

whats the question i might be able to help

Step-by-step explanation:

:)))))))

6 0
3 years ago
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