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3 years ago

Pls help me out ! i’ll mark you brainliest

Mathematics

2 answers:

Vlad [161]3 years ago

6 0

If s=2, then t= 2(2)-3 = 1
T=2(4)-3= 5
T=2(6)-3= 9
T=2(8)-3=13

serious [3.7K]3 years ago

4 0

Answer: 1, 5, 9 and 13

Step-by-step explanation: You plug in the s number into the equation and the answer is what you plug in at the bottom! Good luck! :D

t = 2(2)-3 -> 1

t = 2(4)-3 -> 5

t = 2(6)-3 -> 9

t = 2(8)-3 -> 13

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I need help understanding this ASAP plz, I have a quiz over this next week!!!!

scZoUnD [109]

Answer:

Step-by-step explanation:

With any two points, you can find the line between them with:

$y = mx + b\\where\\m = \frac{y_2-y_1}{x_2-x_1}$

#1:

(-1, 1) -> (1, 3) $m = \frac{3-1}{1-(-1)} = 1, 3 = 1(1) + b, b = 2, y = x + 2$

(3, 4) -> (0, 2) $m = \frac{4-2}{3-0} = \frac{2}{3}, 2 = \frac{2}{3}(0) + b, y = \frac{2}{3}(x)+2$

(0, 1) -> (3, 3) $m = \frac{3-1}{3-0} = \frac{2}{3}, 1 = 2/3(0) + b, y = \frac{2}{3}(x) + 1$

Lines b and c are parallel because they have the same slopes

#2 is a bit easier

a: 2y = x + 12, $y = \frac{1}{2}(x) + 6$

b:2y - x = 5, $y = \frac{1}{2}(x) + \frac{5}{2}$

c: 2y + x = 4, $y = \frac{-1}{2}(x) + 2$

Since lines a and b have the same slope, they are parallel

#3:

(1, 3), y = 2x - 5

We have to find a line with a slope of 2 that passes through the two points

$y = 2x + b\\3 = 2(1) + b\\b = 1\\\\y = 2x + 1$

#4:

(-2, 1) , y = -4x + 3

We have to find a line with a slope of-4 that passes through the line

$y = -4x + b\\1 = -4(-2) + b\\1 = 8+ b\\b = -7\\y = -4x - 7$

#5:

(-2, 3) (1, -1), $m = \frac{3-(-1)}{-2-1} = \frac{-4}{3}, 3 = \frac{8}{3} + b, b = \frac{1}{3}, y = \frac{-4x}{3} + \frac{1}{3}$

(-3, 1) (1, 4), $m = \frac{4-1}{1-(-3)} =\frac{3}{4}, 4 = \frac{3(1)}{4} + b, y = \frac{3}{4}(x) + \frac{13}{4}$

(0, 2) (3, -2) $m = \frac{2-(-2)}{0-3} = \frac{-4}{3} , 2 = b, y = \frac{-4}{3}(x) + 2$

Since lines c and b have negative reciprocal slopes, they are perpendicular

#6:

a: y = -4x + 7

b: x = 4y + 2, $y = \frac{x}{4} - \frac{1}{2}$

c: -4y + x = 3, $y = \frac{x}{4} - \frac{3}{4}$

since lines a and c have negative reciprocal slopes, they are perpendicular

6 0

3 years ago

solve the inequality algebraically. express your answer using interval or set notation. graph the solution set. -5 less than or

Bumek [7]

Step-by-step explanation:

This ≤ inequality sign means:

Less than/Equal to
No more than
At most
Maximum of

-5 ≤ 4

And then:

-3x ≤ 2

OR:

-5 ≤ 4 -3x ≤ 2

Hi!!! Sorry, I didn't know if they were suppose to be together or separate, so I just did it both ways!!! :) Really sorry if I am wrong...

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4 years ago

I need help please help me

Leviafan [203]

Is that the Algebra work/practice book? If so, go into algebra nation and they have videos where they go step by step through the questions. Hope this helps?

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3 years ago

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Dafna1 [17]

Answer:

2.2

Step-by-step explanation:

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Sale Price = $110 - $41.80 = $68.20

Answer: $68.20

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4 years ago

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