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blsea [12.9K]
3 years ago
7

What do the following two equations represent? 4x-2y=-5 and -2x+3y=-3

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

Answer:

Step-by-step explanation:

4x - 2y = -5

-2y = -4x - 5

y = 2x + 5/2.....slope here is 2

-2x + 3y = -3

3y = 2x - 3

y = 2/3x - 1.....slope here is 2/3

NONE OF THE ABOVE.....they are not the same line....they are not parallel because they dont have the same slope....they are not perpendicular because they do not have negative reciprocal slopes

Readme [11.4K]3 years ago
7 0

Answer:

this would be none of the above.

Step-by-step explanation:

its not equal because when solving, x and y isnt the same for both equations.

i cant explain the rest, my apologies but if u use a website called *desmos* you can put up equations and itll graph them for you. :3

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I need help with this problem please if you can help I would really appreciate it and the problem is number 10
aev [14]

Answer:

g(-5) = -127

Step-by-step explanation:

Plug in -5 for x:

g(-5) = (-5)^3 - 2

= -125 - 2

= -127

4 0
3 years ago
How to find the area of a heptagon?
Leona [35]
Regular heptagonSolve for <span>area

</span>A= 7/4 x a^2 x cot(180 degrees/7)

https://www.google.com/search?sourceid=chrome-psyapi2&rlz=1C1ZQQI_enUS697US697&ion=1&espv=2&ie=UTF-8&q=area%20of%20a%20heptagon%20formula&oq=area%20of%20a%20heptagon&aqs=chrome.1.69i57j0l5.4065j0j7

https://www.google.com/search?sourceid=chrome-psyapi2&rlz=1C1ZQQI_enUS697US697&ion=1&espv=2&ie=UTF-8<span>&q=area%20of%20a%20heptagon%20formula&oq=area%20of%20a%20heptagon&aqs=chrome.1.69i57j0l5.4065j0j7</span>
5 0
3 years ago
A brand of clay brick tiles has the dimensions 3 5 8 by 7 5 8 by 1 2 inch. These thin bricks are commonly used for floors. Estim
raketka [301]

Answer: The cost to tile the floor is $318.24.

Step-by-step explanation:

Since we have given that

Dimensions of floor is 12 by 17 foot.

So, Area of floor would be

12\times 17\\\\=204\ sq.\ foot

As we know that 1 foot = 12 inch

So, Area of floor would be

204\times (12)^2\\\\=204\times 144\\\\=29376\ sq.\ foot

Dimension of brick tiles is given by

3\dfrac{5}{8}\ by\ 7\dfrac{5}{8}\ by\ \dfrac{1}{2}

So, Area of brick tiles is given by

2(lb+bh+lh)\\\\=2(\dfrac{29}{8}\times \dfrac{61}{8}+\dfrac{61}{8}\times \dfrac{1}{2}+\dfrac{29}{8}\times \dfrac{1}{2})\\\\=2(\dfrac{1769}{64}+\dfrac{61}{16}+\dfrac{29}{16})\\\\=2\times \dfrac{1769+244+116}{64}\\\\=\dfrac{2129}{32}

So, Number of clay brick would be

29376\div \dfrac{2129}{32}\\\\=29376\times \dfrac{32}{2129}\\\\=\dfrac{29376\times 32}{2129}\\\\=441.53\\\\\approx 442

cost of each clay brick = $0.72

So, Total cost of flooring would be

442\times 0.72\\\\=\$318.24

Hence, The cost to tile the floor is $318.24.

7 0
2 years ago
The sum of 7 and three times a number b is at least 12
Allushta [10]

Answer:

The expression is 7+3b≥12

The solution is b≥5/3

Step-by-step explanation:

7+3b≥12

3b≥5

b≥5/3

6 0
3 years ago
What is the equation of the line shown written in slope-intercept form?
Nataly [62]
It would be Y=2 as it's a horizontal line at y=2
6 0
3 years ago
Read 2 more answers
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