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2 years ago

Help ASAP this is hard to solve

Mathematics

1 answer:

VLD [36.1K]2 years ago

8 0

Answer:

For the first one it is BEA and the second one is CED

I hope this help I would also appreciate brainliest please :)

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 A country has a total biocapacity of 6.21 ha/person, a biocapacity of grazing land of 0.85 ha/person, and a biocapacity of for

yanalaym [24]

Answer:

3.38/6.21=54.428% (0.54428)

Step-by-step explanation:

biocapacity of grazing land of 0.85 ha/person+biocapacity of forest land of 2.53 ha/person

2.53+0.85=3.38

the percentage of biocapacity from grazing and forest land

3.38/6.21=54.428% (0.54428)

3 0

3 years ago

Consider the linear system of equations. y = –x + 9 y = 0.5x – 6 If the solution is (a,–1), what is a? a =

Nadusha1986 [10]

Answer:

The value of a is 10.

Step-by-step explanation:

We are given with the following pair of the linear system of equations below;

$y = -x+9$ and $y = 0.5x-6$ .

Also, the solution is given as (a, -1).

To find the value of 'a', we have to substitute the solution in the equation because it is stated that (a, -1) is the solution of the given two equations.

So, the x coordinate value of the solution is a and the y coordinate value of the solution is (-1).

First, taking the equation;

$y = -x+9$

Put the value of x = a and y = -1;

(-1) = -(a) + 9

a = 9 + 1 = 10

Now, taking the second equation;

$y = 0.5x-6$

Put the value of x = a and y = -1;

$(-1) = 0.5(a)-6$

0.5a = 6 - 1

0.5a = 5

$a=\frac{5}{0.5}$

a = 10

Since we get the value of a = 10 from the equations, so the value of a is 10.

8 0

3 years ago

Conplete the square to solve the quadratic equation. x<br><img src="https://tex.z-dn.net/?f=1%20%7Bx%7D%5E%7B2%7D%20%20-%206x%20

o-na [289]

Answer:

$\large\boxed{x=4\pm2\sqrt6}$

Step-by-step explanation:

$x^2-6x+12=2x+20\qquad\text{subtract}\ 2x\ \text{and}\ 12\ \text{from both sides}\\\\x^2-8x=8\\\\x^2-2(x)(4)=8\qquad\text{add}\ 4^2=16\ \text{to both sides}\\\\x^2-2(x)(4)+4^2=8+4^2\qquad\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\(x-4)^2=24\iff x-4=\pm\sqrt{24}\\\\x-4=\pm\sqrt{4\cdot6}\\\\x-4=\pm\sqrt4\cdot\sqrt6\\\\x-4=\pm2\sqrt6\qquad\text{add 4 to both sides}\\\\x=4\pm2\sqrt6$

6 0

3 years ago

The veterinarian weighed Oliva's new puppy, Benz, on a defective scale.

Mrrafil [7]

Answer:

$\boxed{x = 10.28 \%}$

Step-by-step explanation:

$\frac{(26.75)x}{100} = 2.75 \\ \boxed{x = 10.280373832}$

5 0

3 years ago

Solve the equation negative 3X +9 equals three(2x+3) + 3(x-4) + 1

timofeeve [1]

Answer:

Step-by-step explanation:

-3x+9=3(2x+3)+3(x-4)+1

Distributive property in the parenthesis

-3x+9=6x+9+3x-12+1

Combine Like Terms

-3x+9=9x-2

Get the x’s on one side

-3x+9=9x-2

+3. +2 +3. +2

11=11x

Divide by 11 on both sides

11/11=1

5 0

2 years ago