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Gnom [1K]
3 years ago
7

Find the slope and y-intercept of the equation 4x+5y=-9

Mathematics
1 answer:
Vesnalui [34]3 years ago
6 0

Yo sup??

4x+5y=-9

y=(-4x)/5-9/5

we see that this is of the form y=mx+c

where m is the slope

therefore the slope of the line is -4/5

To find y intercept, put x=0

y=-4*0/5-9/5

y=-9/5

Therefore y intercept is -9/5

Hope this helps.

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r-ruslan [8.4K]

Answer:  5y^3-7x^5

Step-by-step explanation:

5 0
3 years ago
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19 + x/2 = 4<br> How do I do this
GuDViN [60]

Answer: x = -30

Steps:  19 + x/2 = 4

Subtract 19 from both sides: 19 + x/2 - 19 = 4 - 19

Simplify: x/2 = 15

Multiply both sides by two: x/2 (2) = -15 (2)

Simplify: x = -30

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3 years ago
The area of a rectangular wall of a barn is 252 square feet. Its length is 10 feet longer than twice its width. Find the length
valentinak56 [21]

Answer: Length = 28 feet and width = 9 feet

Step-by-step explanation:

Let x = width of the wall.

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Since , Area of rectangle = length x width

Then, as per given,

252= (10+2x)x\\\\\Rightarrow\ 252=10x+2x^2\\\\\Rightarrow\ 2x^2+10x-252=0\\\\\Rightarrow\ x^2+5x-126=0\\\\\Rightarrow\ x^2+14x-9x-126=0\\\\\Rightarrow\ (x+14)-9(x+14)=0\\\\\Rightarrow\ (x+14)(x-9)=0\\\\\Rightarrow\ x=-14 \ or \ x= 9

Since width cannot be negative , so x = 9

So width = 9 feet and length = 10+2(9)=10+18 = 28 feet

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7 0
3 years ago
An expression is given (3^2)^3•3^6/3^4
Tomtit [17]
Hopes this if it doesn’t I any so sorry if I got it wrong:

Answer: 6561
7 0
3 years ago
PLZ HELP AS FAST.
ivanzaharov [21]

<em>Answer</em>

the <u>triangle on the bottom left</u> has the greatest area

<em>Step-by-step explanation</em>

first one has an area of 24.5

second one has an area of 19.6

the third one has an area of 27.6 (greatest area)

19.6>24.5>27.6

<em>hope this helped!</em>

<em>have an awesome day :D</em>

5 0
3 years ago
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