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Tcecarenko [31]
3 years ago
14

A line has a slope of 1/2 and goes through the point (2,-1). What is the equation of this line in slope intercept form.

Mathematics
1 answer:
Tcecarenko [31]3 years ago
8 0

Answer:

y=1/2x-1

Step-by-step explanation:

the slope-intercept form is y=mx+b where m is the slope and b is the y-intercept

- we know that the slope is 1/2 and that the y-intercept if the point (2,-1) is -1 so....

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A number cube is rolled. What is the probability that the result is a number greater than 4?​
JulijaS [17]

Answer:

1/3

Step-by-step explanation:

Number cube has 6 sides so a number greater than 4 is 5 and 6. Which is 2 times so 2/6 which can simplify to 1/3

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3 years ago
What's the slope and y-intercept of the equation 3x + 4y = 8?
Anna71 [15]

Answer:

Slope = -3/4

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Step-by-step explanation:

3x+4y = 8\\\therefore 4y = -3x +8\\\therefore y = \frac{-3}{4}x+ \frac{8}{4}\\\therefore y = \frac{-3}{4}x+2\\Equating \: it \: with\: \\y=mx+b\\Slope\:(m) = \frac{-3}{4}\\y-intercept\:(b) = 2

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3 years ago
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Freddy’s savings account went from $520 to $321 after he purchased a new bike. What was the percent decrease?
Vinil7 [7]

Step-by-step explanation:

The bike cost $199 to get $199 you do a number line then label 520 then at the end label 321 so then you do -20 then -100 then -50 then -20 then -9. so now you add them up 20+100+50+20+9 which equals =199

so bike cost $199

then 520%×199= 1034.8

or 520%×321=1669.2

so the  percentage is 1669.2 or 1034.8 probably 1669.2 but they bot count.

5 0
3 years ago
If r=9, b=5, and g=6. what does (r+b-g)(b-g) equal?
Alecsey [184]

(r+b-g)(b-g)

I this question , we have the values of r,b and g given , which are r=9,b=5,g=6

And we have to find the value of the given expression . And for that we need to substitute the values of r,b and 9 in the expression. That is ,

(9+5-6)(5-6) = 8(-1) = -8

So the value of the given expression is -8.

6 0
3 years ago
A bakery mixes cookie dough in large batches. For chocolate chip cookies, 10 cups of sugar and 20 cups of flour are needed
denpristay [2]

Answer:

around 30

Step-by-step explanation: dont quote me though

8 0
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