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ohaa [14]
3 years ago
13

Heath has found a new online encyclopedia by a company he has never heard of before. Heath’s friend, Sam, urges Heath to stick t

o sites he knows are safe and credible. Why is Sam so concerned?
a.
Many online references are not regulated
c.
Both of these
b.
Online references may contain incorrect information
d.
None of these
Mathematics
2 answers:
Makovka662 [10]3 years ago
8 0
C. Both of these. Why? because most online resources are regulated and may contain incorrect information. 

erik [133]3 years ago
3 0
I would say c, bc they can on be right.
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Solve the system of equations. y = -5x + 24 y = 4x - 21 a. ( -5, -1) c. ( -1, 5) b. ( 5, -1) d. No solution
Svetlanka [38]

y = -5x + 24

y = 4x - 21

Since both of these equations are equal to Y, theyre equal to each other.

So we can make an equation with y = -5x + 24 in one side and y = 4x - 21 on the other.

-5x + 24 = 4x - 21

Now in order to get the value of x we need to isolate it in one side of the equation. We can do this by subtracting 24 from both sides of the equation:

-5x + 24 - 24 = 4x - 21 - 24

-5x = 4x - 45

Now we subtract 4x from both sides so the 4x shift to the other side

-5x - 4x = 4x - 4x - 45

-9x = -45

Finally divide both sides by -9 so x is by itself

(-9)÷(-9x) = -(45)÷(-9)

x = 5

Since we did all of this to BOTH sides of the equation, both sides are still equal to each other and the equation still is true.

Now apply x = 5 to either of the initial equations to find the value of Y

y = -5x + 24 or y = 4x - 21

(I'll do both but u only need one)

y = -5(5) + 24

y = -25 + 24

y = -1

y = 4(5) - 21

y = 20 - 21

y = -1

Either way, X is 5 and Y is -1

Answer (5, -1)

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2 years ago
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Solve for d: by simplifying both sides of the equation, then isolating the variable.

C. d>0

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I NEED HELP ASAP PLEASEE THANK YOUUU
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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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