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4 years ago

I WILL MARK YOU BRAINLEST IF YOU HELP PLS HELP !!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

ipn [44]4 years ago

6 0

Answer: C. For every 2 rectangles there are 4 triangles.

Step-by-step explanation: I just did it on Edge :)

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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

Find the measure of M

Neporo4naja [7]

Answer:

∠M = 78º

∠N = 68º

∠P = 34º

Step-by-step explanation:

we know that the inside of a triangle is equal to 180º. we also know that angle p and angle q equal 180º when added together because that's the angle of a straight line. first we need to find angle p.

180 - 146 = 34º

now we can set it up so that all the angles equal 180º when added together.

(5y + 3) + (4y + 8) + 34 = 180

5y + 4y = 9y

9y + 3 + 8 + 34 = 180

3 + 8 + 34 = 45

9y + 45 = 180

-45 -45

-------------------

9y = 135

÷9 ÷9

y = 15

now we can plug 15 in for y

(5 x 15 + 3) = 78º

(4 x 15 + 8) = 68º

to double check, add all three angles and make sure they equal 180º

78 + 68 + 34 = 180

7 0

3 years ago

The expression -3m - [2m + (5 - m)] + 7 was simplified as 2 - 4m. Without simplifying, explain how you can show that it has been

Rina8888 [55]

Answer:

Step-by-step explanation:

g(m) = 0

2-4m=0

2=4m

2/4=m

1/2=m------(1

p(1/2)= -3(1/2) - { 2(1/2) + (5- 1/2) } +7

= -3/2 - { 1 + 9/2} +7

= -3/2 - ( 11/2) +7

=-14/2 +7

= -14 + 14 /2

= 0/2

= 0...

since p(m)= 0,

we can say that g(m) is a factor of p(m)

hence, it has been simplified correctly...

3 0

4 years ago

Write the equation for the vertical line that contains point E(-7, 7)

DerKrebs [107]

Answer:

$-7 = x$

Step-by-step explanation:

Since you only have one point here, you take the x-coordinate set it equal to x.

I am joyous to assist you anytime.

5 0

4 years ago

Suppose that you take $350 in currency out of your pocket and deposit it in your checking account. If the required reserve ratio

nika2105 [10]

Answer:

= $3,888.89

Step-by-step explanation:

First, calculate the money multiplier(MM); which is the amount of money that is generated by the banks for each dollar of reserve. In this case, it describes how a deposited amount increases the total supply of money.

Money Multiplier = 1 / reserve ratio

Reserve ratio = 9% or 0.09

Therefore, money multiplier = 1/0.09 = 11.1111

Next, use the reserve ratio to calculate the amount of increase in money supply;

= 11.1111 * $350

= $3,888.89

5 0

4 years ago