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3 years ago

13

How many 1/6 centimeters of yarn are there in 3/4 centimeters of yarn?

2 answers:

aliya0001 [1]3 years ago

5 0

Answer:

Its 639 if that dosent help contact me ill help guadianeany time.

Step-by-step explanation:

Anettt [7]3 years ago

5 0

636 is the correct answer

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Solve x^4-10x^2+9=0 <br> please and thank you

Sloan [31]

Answer:

1,3

Step-by-step explanation:

=(x^2-1)(x^2-9)=0

x=1,x=3

5 0

3 years ago

Equations<br> divison-<br> m+72=100<br> Help!!!

Mademuasel [1]

The solution to the equation, <em>m</em> + 72 = 100, is ...

m = 28.

6 0

3 years ago

Read 2 more answers

Solve the system using elimination.<br><br> 2x + 3y = 17<br> x + 5y = 19

ale4655 [162]

$\left\{\begin{array}{ccc}2x+3y=17\\x+5y=19&|\text{multiply both sides by (-2)}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}2x+3y=17\\-2x-10y=-38\end{array}\right}\qquad\text{add both sides of equations}\\.\qquad\qquad-7y=-21\qquad\text{divide both sides by (-7)}\\.\qquad\qquad \boxed{y=3}\\\\\\\text{Substitute the value of y to the second equation}\\\\x+5(3)=19\\\\x=15=19\qquad\text{subtract 15 from both sides}\\\\\boxed{x=4}\\\\Answer:\ x=4\ and\ y=3.$

5 0

3 years ago

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

Question 1 (Multiple Choice Worth 4 points)

VLD [36.1K]

Answer:

In the first expression:

(5^3)^-4 = 5^-12

Step-by-step explanation:

4 0

3 years ago