3 years ago

1. find m s in rstw 2. solve a system of linear equations 3. find the value of x

1 answer:

8 0

Answer:When solving systems of equation with three variables we use the elimination ... We then multiply the second equation with 3 on both sides and add that to the ... plug our x- and y-value into any equation in first system in order to determine

Step-by-step explanation:

You might be interested in

If i get £20 pounds at week and I need £470 pounds how many weeks do I have to save for

natulia [17]

Answer:

23.5 weeks.

Step-by-step explanation:

470/20 is 23.5

3 0

3 years ago

Read 2 more answers

Simplify nine square root of two minus three square root of seven plus square root of eight minus square root of twenty eight.

avanturin [10]

Answer:

$11\sqrt{2} - 5\sqrt{7}$

Option (A) is the correct answer.

Step-by-step explanation:

$9\sqrt{2} - 3\sqrt{7} + \sqrt{8} - \sqrt{28}$

Now, $\sqrt{8} = \sqrt{2 \times 2 \times 2} = 2\sqrt{2}$

$\sqrt{28} = \sqrt{2 \times 2 \times 7} = 2\sqrt{7}$

∴ $9\sqrt{2} - 3\sqrt{7} + \sqrt{8} - \sqrt{28}$

= $9\sqrt{2} - 3\sqrt{7} + 2\sqrt{2} - 2\sqrt{7}$

= $9\sqrt{2} + 2\sqrt{2} - 3\sqrt{7} - 2\sqrt{7}$

= $11\sqrt{2} - 5\sqrt{7}$

Therefore option (a) is the correct answer.

6 0

2 years ago

Read 2 more answers

Help me out please,,,

Aleks04 [339]

Answer:

Step-by-step explanation:

5 0

2 years ago

The difference between 6 thirty-sixes and 4 thirty-sixes?

Rzqust [24]

Difference between 6- 36's & 4-36's would be 2-36's
Which would be equal to 72.

4 0

2 years ago

Read 2 more answers

An airplane leaves an airport and flies due west 180 miles and then 160 miles in the direction S79.17˚W. How far is the plane fr

suter [353]

Using the cosine rule

x^2 = 180^2 + 160^2 - 2.160.180 cos 169.17

= 114574.09

x = sqrt 114574.09 = 338 miles to nearest mile

5 0

2 years ago