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creativ13 [48]
3 years ago
5

Please help me i really need help please help me please i really really need help please

Mathematics
2 answers:
Mila [183]3 years ago
8 0

Answer:

(6,1) is the correct answer

Dennis_Churaev [7]3 years ago
8 0

Answer: (-2,5)

Step-by-step explanation:

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Please help explain how to solve problem 16?
Anarel [89]
Here is the problem.....√(15x + 10) = 2x+3

to remove the square root, we do the opposite which is to square everything.

(√(15x + 10))² = (2x + 3)²      (the square negates the square root)
15x + 10 = (2x +3)(2x + 3)    (use the distributive property to continue)
15x + 10 = 4x² + 6x + 6x + 9  (combine like terms)
15x + 10 = 4x² + 12x + 9      (subtract 15x and 10 from each side)
-15x - 10          -15x - 10
0 = 4x² - 3x - 1                      (factor completely)
(x - 1) (4x + 1)                    (set each to equal 0)

x - 1 = 0                4x + 1 = 0
x = 1                      4x = -1
                               x = -1/4

place both into the equation to check for reasonableness...we see the negative number is not reasonable, but the x value of 1 is a solution.

answer is 1
4 0
3 years ago
Graph the line whose x-intercept is -1 and whose y-intercept is 4.<br> x<br> 5<br> ?
shepuryov [24]

Answer:

the x axis is the one that lies flat horizontal this is called the run. the y intercept is the one that goes up and down standing. now you have to plot a dot on the line x moving toward the negative 1 and go up to y meeting up to 4 and that should give you the line to graph

7 0
3 years ago
Which of these items is a tax deduction?
Flura [38]
I'll just provide you some tax deductions.
1) sales tax. 
2) state tax
3) health insurance premiums *subject to limitations
4) tax savings for teachers *up to $250 for materials
5) charitable gifts
6) lifetime learning
7) unusual business expense
8) looking for job at the same field *cost incurred during job hunting can be deductible but still subject to limitation
9) self-employed social security

7 0
3 years ago
4y + x = 12, 2x = 24 - 8y<br> Solve by Substitution
Ann [662]

Answer: Undefined

Step-by-step explanation:

4y+x=12, 2x=24-8y

Isolate x by subtracting 4y

4y+x=12

x=12-4y

Plug the equation for x in to anywhere you see the variable x in the other equation

2(12-4y)=24-8y

Distribute 2

24-8y=24-8y

Get the variables on one side so add 8y (cancels out)

24=24

Can’t solve its undefined

4 0
2 years ago
98 POINTS!!!!! PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Maslowich

Hello!

I believe the answer is C.

I hope it helps!

3 0
3 years ago
Read 2 more answers
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