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rodikova [14]
3 years ago
14

A line passes through (-1, 5) and (3,-3). Write the equation of the line.

Mathematics
1 answer:
GREYUIT [131]3 years ago
5 0

Answer:

y=-4x-8

Step-by-step explanation:


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Paula has $54. She bought some pencils, each costing $0.75, and a paper ream for $2.50. She is left with $42.50 after buying pen
8090 [49]

Answer:

12 pencils

Step-by-step explanation:

let no. of pencils bought be x.

54 - 0.75x - 2.50 = 42.50

9 = 0.75x

x = 12

Topic: algebraic equations

If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!

7 0
2 years ago
Doubling the sum of 5 and a number is equal to the same number decreased by 2. what is the equation
SVEN [57.7K]

Answer:

2(x + 5) = x - 2

⟹ x = -12

Step-by-step explanation:

Doubling the sum of 5 and a number is equal to the same number decreased by 2. What is the equation?

This word problem can be written as:

⟹ 2(x + 5) = x - 2

1. Distribute:

2(x) + 2(5) = x - 2

⟹ 2x + 10 = x - 2

2. Subtract x from both sides:

2x - x + 10 = x - x - 2

⟹ x + 10 = -2

3. Subtract 10 from both sides:

x + 10 - 10 = -2 - 10

⟹ x = -12

4. Check your work:

2(x + 5) = x - 2

2(-12 + 5) = -12 - 2

2(-7) = -20

⟹ -14 = -14 ✔

Learn more here:

brainly.com/question/17821973

3 0
1 year ago
Find the length of U and V. Show work. Giving out brainliest answer.
MrRissso [65]

Answer:

u =√6

v =√5

Step-by-step explanation:

u = √(1²+2²+1²) =√(1+4+1) = √6

v = √(1²+2²) =√(1+4) = √5

3 0
2 years ago
Write a function rule for the table. x ƒ(x) –3 –6 –2 –4 –1 –2 0 0
kogti [31]

Answer:

y=-2x

Step-by-step explanation:

The function has the table:

x          f(x)

-3          -6

-2          -4

-1           -2

0            0

Looking at the table, f(x) deceases by 2 each time. This is a constant rate of change called slope. This is a linear function and its equation can be written using y = mx+b. m = -2. b is the y-intercept for starting point where x = 0. When x=0, the table shows y=0. So b=0.

This means the rule is y = -2x.

4 0
2 years ago
sketch nine points connect the points to form a closed plane figure what kind of polygon did you draw
Zina [86]
Octagon is your answer, i think
4 0
3 years ago
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