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Ad libitum [116K]
3 years ago
12

Does the relation {(-5, -3), (7,2), (3,8), (3, -8)} represent a function. Use the arrow digram. Then explain your answer.

Mathematics
1 answer:
Maslowich3 years ago
4 0
No it is not a function
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Victoria can make 8 necklaces in 4 days. How long does it take her to make ond necklace?
irina1246 [14]

Answer:

0.5\ days

Step-by-step explanation:

we know that

Using proportion

\frac{4}{8}\frac{days}{necklaces} =\frac{x}{1}\frac{days}{necklace} \\ \\x=4/8\\ \\x=0.5\ days

5 0
3 years ago
Bill is 2 years older than his brother Will. If the product of their ages is one less than five times the sum of their ages, how
Advocard [28]

Answer:

Will's age = 9 years

Bill's age = 11years

Step-by-step explanation:

Let will age = x

Bill = x +2 since he is 2 years older

x(x+2) = 5( x +x+2) - 1

Opening brackets

x² + 2x = 5(2x + 2) - 1

x² + 2x = 10x + 10 - 1

x² + 2x = 10x + 9

Collect like terms

x² + 2x - 10x - 9 = 0

x² - 8x - 9 = 0

Solve quadratically using factorisation method by finding two factors of +9 that can add up to give -8, the coefficient of x.

The factors are -9 and +1

x² + x - 9x - 9 = 0

x(x + 1) -9( x +1)

x+1) (x -9) =0

x + 1 = 0 or x -9 =0

x = -1 or 9

Age can not be negative

Therefore,

Will's age = 9 years

Bill's age = x+2 = 9+2 = 11years

I hope this was helpful, please rate as brainliest

6 0
3 years ago
How do i graph negative square roots on a number line​
DerKrebs [107]

Answer:

see below

Step-by-step explanation:

On the real number line you can't

to graph them you have to make a Cartesian plane

with x= the real numbers

and y= the imaginary numbers

8 0
3 years ago
Which two equations are parallel?
Mekhanik [1.2K]

Answer: The third option is correct.

Step-by-step explanation:

In order for two equations to be parallel, the equations' slopes must be the same.

5 0
2 years ago
Can you create a pattern with the rule n*2+1
Citrus2011 [14]
3, 5, 7, 9, 11, etc.
4 0
3 years ago
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