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2 years ago

9

17. Find the ratio of the perimeter to the area of the square shown. x + 3 x + 3

1 answer:

Serga [27]2 years ago

7 0

Answer:

4x+12/x^2+9

Step-by-step explanation:

Perimeter

x+3+x+3+x+3+x+3

Area

(x+3)(x+3)

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System of Equations <br> Need help<br> Trig

Yanka [14]

Looks like the system is

$\begin{cases}-2x+y+6z=1\\3x+2y+5z=16\\7x+3y-4z=11\end{cases}$

We can eliminate $y$ by taking

$(3x+2y+5z)-2(-2x+y+6z)=16-2(1)$

$\implies3x+2y+5z+4x-2y-12z=16-2$

$\implies7x-7z=14$

$\implies x-z=2$

so that $z=x-2$ , and

$(7x+3y-4z)-3(-2x+y+6z)=11-3(1)$

$\implies7x+3y-4z+6x-3y-18z=11-3$

$\implies13x-22z=8$

Substitute $z=x-2$ into this last equation and solve for $x$ :

$13x-22(x-2)=8$

$\implies13x-22x+44=8$

$\implies-9x=-36$

$\implies x=4$

Then

$z=x-2$

$\implies z=4-2$

$\implies z=2$

Plug these values into any one of the original equation to solve for $y$ :

$-2x+y+6z=1$

$\implies-2(4)+y+6(2)=1$

$\implies-8+y+12=1$

$\implies y=-3$

Hence the solution is x = 4, y = -3, and z = 2.

6 0

3 years ago

What is the value of x

oksian1 [2.3K]

Answer:

I think it would be 2

Step-by-step explanation:

hope it help and was rigjt

6 0

2 years ago

Read 2 more answers

Please help .......................

Sholpan [36]

Answer: slide the triangle to the right 3 times and down 1

Step-by-step explanation:

3 0

2 years ago

There are 12 inches in 1 foot and 5,280 feet in 1 mile. Jada ran 34 miles.

zvonat [6]

For this case we must convert 34 miles to feet and inches.

34 miles to feet:

$34 miles * \frac {5280} {1} * \frac {feet} {miles} = 179,520 feet$

Jada runs 179,520 feet

34 miles to inches:

$34 miles * \frac {5280} {1} * \frac {feet} {miles} * \frac {12} {1} * \frac {inches} {foot} = 2,154,240 inches$

Jada runs 2,154,240 inches

Answer:

Jada ran 179,520 feet

Jada ran 2,154,240 inches

3 0

2 years ago

2x-3 /(by) 3x+2 = -2/ (by) 3<br><br>Help ME PLLLEEAASSEE!

timurjin [86]

I forgot how to do this

5 0

2 years ago