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matrenka [14]
3 years ago
5

IMMEDIATE HELP PLS HELP NOW

Mathematics
1 answer:
irga5000 [103]3 years ago
7 0

Answer:

D. y = { -x + 2 x ≥ 1}

          { x + 1  x < 1}

Step-by-step explanation:

First is to eliminate A and C, why?

This is because of the end points shown on the graph.

As shown, if you look at the point of (2,1) it is black, this means that not only is it closed but it is also means ≤ or ≥ symbol.

You are now left with B and D

The difference between these two is the symbols; they are facing the opposite directions.

While B says x ≤ 1, and x > 1

While D says x ≥ 1, and x < 1

The direction of the symbols depends on the direction of the lines and what is part of it (some what like a shaded area)

So you answer would be D

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50 Points for the full answer to this question!!!
soldier1979 [14.2K]
<h3>Answer:</h3>

a, b, c) see the attachment

d) y = -34.4762(x -2.44268)² +281.613

<h3>Explanation:</h3>

Using Desmos is pretty straightforward for doing what the problem statement asks. You make a table, then write an equation for y₁ in terms of x₁ using the tilde (~) for the equal sign. Desmos chooses values of the coefficients to make the curve of best fit and lists those for you.

For part (b) of your question, you will have to copy the values into the form of the equation: replace "a" with its value, "b" with its value, "c" with its value.

The vertex point has been highlighted on the curve, so you can read its coordinates on the graph.

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The equation you write relating x₁ and y₁ can be written in vertex form, so you can have Desmos tell you the appropriate numbers directly. (See the second attachment.) As it works out, you don't have to, because the "a" value and the vertex coordinates are all you need to write the equation in vertex form.

5 0
3 years ago
Read 2 more answers
What is the answer to this question
inn [45]

Answer:

x > -440

Step-by-step explanation:

1/8x + 25 < 80 + 1/4x

1/8x < 55 + 1/4x

-1/8× < 55

x > -440

8 0
3 years ago
Jack has 18 yards of fabric that he wants to cut into pieces that are each 1 foot long. How many one-foot long pieces can Jack c
Andrew [12]

Answer:

54 foot long pieces

Step-by-step explanation:

Jack has 18 yards of fabric that he wants to cut into pieces that are each 1 foot long. How many one-foot long pieces can Jack create? Come up with two different strategies for solving. (1 yd = 3 ft)

Step 1

Convert yards to foot

1 yd = 3 ft

18 yards = x

Cross Multiply

x = 18 × 3 ft

= 54 ft

Step 2

He wants to cut into pieces that are each 1 foot long. How many one-foot long pieces can Jack create?

This is calculated as:

1 foot = 1 piece.

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x = 54 × 1 piece

x = 54 pieces

8 0
3 years ago
3y- 12x = 18<br> 2y-8x= 12
arlik [135]

Answer:

x=0

y=6

Step-by-step explanation:

3y- 12x = 18

2y-8x= 12

rearrange the equation

2y-8x=12

add 8x to both sides

2y=8x+12

divide both sides by 2

y=4x+6

now substitute it into 3y-12x=18

3(4x+6)-12x=18

simplify

12x+18-12x=18

simplify

18=18

x=0

substitute to find y

2y-8(0)=12

2y=12

y=6

Recheck:

3(6)-12(0)=18

18=18

2(6)-8(0)=12

12=12

7 0
3 years ago
Read 2 more answers
Reflect B (2,7) over the y-axis
8_murik_8 [283]
Q: Reflect B (2,7) over the y-axis

Answer:
(-2,7)

Hope this helps! Feel free to comment on this reply if you have any questions. :)
3 0
2 years ago
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