Ask question

Ask question

All categories

4 years ago

7

What are x,y, and z if x+y+4z=5, -2x+2z, 3x+y+2z=-1, i am desperate

1 answer:

natulia [17]4 years ago

6 0

Answer:

how I learned it in school was that the variable had to always equal something, so you would have to put on the side or where ever x=(a number) and also you multiply those numbers cause no sign would mean multiply (I'm so sorry if it's not write though, I hope I could help you a little)

You might be interested in

In hours 3 3/8, John reads 4 1/2 chapters.

BabaBlast [244]

Answer:

1 1/3 chapters per hour

Step-by-step explanation:

eplaination is in the picture

5 0

3 years ago

How do I solve for what is sin A for the triangle shown

PtichkaEL [24]

Option a:

sin A for the triangle is $\frac{3}{5}$ .

Solution:

The given triangle is a right triangle.

The adjacent side to angle A is AC.

The opposite side to angle A is BC.

Hypotenuse is AB.

AC = 8, BC = 6 and AB = 10.

Using trigonometric ratio formulas,

$$\sin \theta=\frac{\text { Opposite side }}{\text { Hypotenuse }}$

$$\sin A=\frac{BC}{AB}$

$$\sin A=\frac{6}{10}$

Divide both numerator and denominator by 2, we get

$$\sin A=\frac{6\div2}{10\div 2}$

$$\sin A=\frac{3}{5}$

Hence sin A for the triangle is $\frac{3}{5}$ .

Option a is the correct answer.

7 0

3 years ago

Is the function y=<br> 2<br> 5<br> x2+<br> 7<br> 10<br> x–6 linear or nonlinear?

Andru [333]

Answer:

Step-by-step explanation:

8 0

3 years ago

Paula drank 4 bottles of water containing 750 ml how many litres has she drunk

Alex17521 [72]

3000 mL of water :) :) :)

3 0

3 years ago

Read 2 more answers

Please help me with these two questions if you can! Btw happy Tuesday

Ymorist [56]

Answer:

Happy Tuesday! Here i'll explain it:

Step-by-step explanation:

First you will have to make 2 2/5 into a improper fraction and then subtract the 5/6. after you have done that multiply the 3/4 to the number

7 0

3 years ago