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Aloiza [94]
3 years ago
14

Help please..............

Mathematics
1 answer:
Zolol [24]3 years ago
4 0

Answer: do u have anymore info on this work.

Step-by-step explanation:

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Part of the roof of a factory is devoted to mechanical support and part to green space. The area G that is designated as green s
alexgriva [62]

Answer:

Therefore, the area of green space would be 30 square yards.

Step-by-step explanation:

The area G that is designated as green space can be modeled by the polynomial 2x^2-7x

the area M that is devoted to mechanical support can be modeled by the polynomial x^2-9x+24.

We are asked to find the area of the green space, when area of roof (R) is 36 square yards.

The area of roof would be equal to sum of areas of green space and mechanical support.

R=G+M

G = 2x^2 -7x M = x^2 -9x +24

the total area is given by 36 yd^2. And we know that:

R = 36 yd^2 = G+M

Replacing the info given we got:

36 = 2x^2 -7x +x^2 -9x +24\\\\ 12= 3x^2 -16 x

And we can rewrite this expression like this:

3x^2 -16 x -12 =0

And we can use the quadratic formual to solve this problem:

X =\frac{-b \pm \sqrt{b^2 -4ac}}{2a}

With a = 3, b = -16 , c =-12. Replacing we have

x = \frac{16 \pm \sqrt{(-16)^2 -4*(3)*(-12)}}{2*3}

And the solutions for this case are:

Since length cannot be negative, therefore, the value of x would be 6.

The area of green space would be:

x = 6

2x^2-7x\Rightarrow 2(6)^2-7(6)\\\\2x^2-7x=2(36)-42\\\\2x^2-7x=72-42\\\\2x^2-7x=30

the area of green space would be 30 square yards.

8 0
3 years ago
NEED HELP ASAP PLSSS WILL MARK BRAILIST!!
artcher [175]

10 years.

at first i thought u was messing around because who would want to buy a magic carpet.

5 0
3 years ago
Read 2 more answers
A 100 feet driveway climbs 5 feet in height to reach the garage. What is the angle of the driveway in degrees. Report answer to
slamgirl [31]

Answer:

Slope and Width

If it's too flat, drainage may become an issue, and if it's too steep, the surface becomes slippery and dangerous. As a general rule, a driveway should be less than a 15% grade, which means that it should not rise more than 15 feet over a distance of 100 feet.

Step-by-step explanation:

mark as BRAINLY

5 0
3 years ago
Simplify (5a)(5b). 10ab 25ab 55ab
klasskru [66]
Multiply 5 by 5 to get 25
25ab
8 0
4 years ago
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Solve and type in a different form by using the given theorems of logarithms <br><br> log (10/y)=
Ulleksa [173]
I think it’s gonna be 1-log(y). You use the quotient rule of logarithms.

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3 years ago
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