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Kay [80]
2 years ago
13

Which system of equations has exactly one solution?

Mathematics
2 answers:
Cerrena [4.2K]2 years ago
5 0

Answer:

2x+y = 3

5x-y= 11

has exactly one solution

Step-by-step explanation:

Hope this Helped :)

Hunter-Best [27]2 years ago
4 0
If you put them in desmos online it works
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What 9 intergers are between -3.5 and 5.5
laila [671]
3.5  3.4   3.3   3.2   3.1   3   -5.5  -1  -2 
6 0
3 years ago
HURRY
Roman55 [17]

Answer:

C

Step-by-step explanation:

0 = 8 is a false statement which means the system has no solutions

6 0
3 years ago
PLEASE HELP NOW ASAP!!!
IceJOKER [234]

She used the associative property which should only be used with positive numbers (sorry if it isn't the answer you're looking for)

3 0
2 years ago
Read 2 more answers
For how many real values of x is <img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B120-%5Csqrt%7Bx%7D%7D%20" id="TexFormula1" title
leva [86]

A good place to start is to set \sqrt{x} to y. That would mean we are looking for \sqrt{120-y} to be an integer. Clearly, y\leq 120, because if y were greater the part under the radical would be a negative, making the radical an imaginary number, not an integer. Also note that since \sqrt{x} is a radical, it only outputs values from [0,\infty], which means y is on the closed interval: [0,120].

With that, we don't really have to consider y anymore, since we know the interval that \sqrt{x} is on.

Now, we don't even have to find the x values. Note that only 11 perfect squares lie on the interval [0,120], which means there are at most 11 numbers that x can be which make the radical an integer. All of the perfect squares are easily constructed. We can say that if k is an arbitrary integer between 0 and 11 then:

\sqrt{120-\sqrt{x}}=k \implies \\ \sqrt{x}=k^2-120 \implies\\ x=(k^2-120)^2

Which is strictly positive so we know for sure that all 11 numbers on the closed interval will yield a valid x that makes the radical an integer.

5 0
3 years ago
Turn 3x+8y=14.50 in a y equals equation
zlopas [31]

Answer:

y= (-3x +14.50) / 8

Step-by-step explanation:

Isolate the 8y

Subtract 3x from both sides

8y = -3x + 14.50

Then, isolate the left to only y

y= (-3x +14.50) / 8

7 0
3 years ago
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