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Ostrovityanka [42]
3 years ago
8

****Please help me with this math problem!!**** Will give stars, thanks, and brainliest!! Josh solved the equation below. Is his

solution correct? Explain why or why not. (Please show work) x^2-6x-7=0 x^2-6x+7\x^2-6x+9=7+9 (x-3)^2=16 x-3=16 x=19 x-3=-16 x=-13 I am pretty sure he messed up when he decided he needed to do x-3 twice, because when there is a +/- sign is the only time you would do x-3 then x+3, right?
Mathematics
1 answer:
viva [34]3 years ago
6 0
<span><span>Graphical form</span><span>: x^2-6*x-7=0x^2-6*x+7x^2-6*x+9=7+9*(x-3)^2=16x-3=16x=19x-3=-16 simplifies to x^2-6*x-7=-12*x+7*x^2+9=9*(x-3)^2+7=16*x-3=16*x=19*x-3=-16 </span><span>:  
: <span>simplify( x^2-6*x-7=0x^2-6*x+7x^2-6*x+9=7+9*(x-3)^2=16x-3=16x=19x-3=-16)

Hope this helps</span></span></span>
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Could you please help?
aleksandr82 [10.1K]
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4. (8,2) (12,3) (16,4) (20,5) (24,6) (28,7)
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6 0
3 years ago
Help pleaseeeeeeeeeeeee
eduard

Step-by-step explanation:

17.0 there you go I hope this helped

4 0
3 years ago
Read 2 more answers
Which of the following accurately lists all discontinuities of the function below?
jeka94
Checking the <span>discontinuity at point -4
from the left f(-4) = 4
from the right f(-4) = (-4+2)² = (-2)² = 4
∴ The function is continues at -4
</span>
<span>Checking the <span>discontinuity at point -2
from the left f(-2) = </span></span><span><span>(-2+2)² = 0
</span>from the right f(-2) = -(1/2)*(-2)+1 = 2
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</span>
<span>Checking the <span>discontinuity at point 4
from the left f(4) = </span></span><span><span>-(1/2)*4+1 = -1
</span>from the right f(4) = -1
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The correct choice is the second
point </span>discontinuity at x = 4 and jump <span>discontinuity at x = -2</span>



5 0
3 years ago
Read 2 more answers
What is the answer to - (2 - 7x) if you simplify
alekssr [168]

Answer:

It would be

-2+7x

Step-by-step explanation:

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3 years ago
Pls help! will mark brainliest if correct
nevsk [136]

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