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Tresset [83]
3 years ago
5

I need help please I forgot how to do this

Mathematics
2 answers:
Savatey [412]3 years ago
4 0

Answer:

no it is not proportional

Artemon [7]3 years ago
4 0

Answer:

No 3/9 would be proportional to 6/18

Step-by-step explanation:

I think

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Solve by completing the square? Could you please work it out step-by-step?
DaniilM [7]
16 n^2 -10n + 129 = 8n^2 -8

We collect the terms:
8n^2 -10n + 137 = 0

The steps for completing the square:

1) Move the "non X" (or "non N") term to the right:

8n^2 -10n  = -137

<span>2)<span> Divide the equation by the coefficient of N² which in this case is 8
n^2 -1.2n = </span></span><span><span>-17.125 </span>

3) Take the coefficient of "N"; divide it by 2; square it; add it to both sides of the equation.
-1.2 / 2 = -.6
-.6^2 = .36

</span>
n^2 -1.2n +.36 = <span>-17.125 +.36

Take the square root of both sides:</span>
(n-.6)*(n-.6) = sq root( <span> <span> <span> -16.765 </span> </span> </span> )
That's about as far as I can go.

4 0
3 years ago
Factor the polynomial completely 6x^2-3x+2
fenix001 [56]

Answer:

can't be factored

answer is D

7 0
2 years ago
Read 2 more answers
A rectangle has a perimeter of 30m. The length is 10m. Solve the following equation to find the width: 2w+ 2(10)= 30
NARA [144]

2w+2(10)=30

multioly the 2 and 10

2w+20=30

subtract 20

2w=10

divide by 2

w=5

plz rate as brainliest answer


5 0
3 years ago
Read 2 more answers
A flagpole casts a 40 foot shadow. The angle of elevation grom the tip of the shadow to the tip of the flagpole is 36". How tall
GuDViN [60]

Answer:

45/22

Step-by-step explanation:

6 0
3 years ago
Find the speed<br><br>Example:      396  miles in 6 hours
Ivanshal [37]
To find the speed with given distance and time you just have to divide the distance by time. In this situation it's 396 miles in 6 hours, so it's 396 / 6 = 66 miles in 1 hour. So the speed is 66 mph.
8 0
3 years ago
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