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stepladder [879]
3 years ago
11

Square of 9 less than a number is 3 less than the number

Mathematics
2 answers:
ale4655 [162]3 years ago
7 0

Answer:Let the number be x, then (x - 9)^2 = x - 3

x^2 - 18x + 81 = x - 3

x^2 - 19x + 84 = 0

(x - 12)(x - 7) = 0

x = 12 or 7

Step-by-step explanation:

attashe74 [19]3 years ago
7 0
The answer would be 7 or 12
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I need help with this
ankoles [38]

Answer:

A.

Step-by-step explanation:

I gotchu fam. The first thing that you would want to do is find the slope. The slope is the change in y divided by the change in x. Based on the points on the line, the change in y is 2 because it goes up two, and the change in x is one because it goes over 1. This would make your slope 2/1, or just 2! Now we have our slope, so we want to find our y-intercept. There are two ways that we can do this. The first way is just eyeballing it, but sometimes that's not always accurate. We're just going to do that because its faster (lol). It looks around -2. With this information, we have our entire equation! y=mx+b. we can plug in our information. y=2x-2. And that's how your answer's A! Hope this helps.

5 0
2 years ago
What is the y-intercept of the line below? :y=-1/4x +1
andre [41]

Answer:

1

Step-by-step explanation:

The y-intercept can be found by plugging in 0 for x, then solving for y.

Plugging in 0 for x, we get:

y=-1/4x+1\\y=-1/4(0)+1\\y=0+1\\y=1

The y-intercept is

(0,1)

3 0
3 years ago
How can I solve this problem
never [62]
This is number 14 answer

7 0
3 years ago
I need an explanation so I can understand this because am very confused
Goryan [66]

Answer:

Doesn’t go though origin

Step-by-step explanation:

It’s non proportional because the line doesn’t go though (0,0) being the origin

hope this helped :)

(if you still don’t understand ill try to explain further in the comments)

8 0
3 years ago
on july 4 180 people hiked on the trail. of these 1/3 camped overnight. how many of the hikers dis not camp overnight
Tanzania [10]
1 - 1/3= 2/3

180(2/3)= 120

120 hikers did not camp overnight.

Hopefully, this helps!
3 0
3 years ago
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