All categories

3 years ago

Question 3

Mathematics

1 answer:

igor_vitrenko [27]3 years ago

7 0

Answer:

The system has exactly one solution where x = 0 and y = -3.

Step-by-step explanation:

-6x + y = -3

7x - y = 3

(7x - 6x) + (y - y) = 3 - 3

x + 0 = 0

x = 0

7(0) - y = 3

0 - y = 3

-y = 3

y = -3

-6(0) + y = -3

0 + y = -3

y = -3

So, the system has exactly one solution where x = 0 and y = -3.

Hope this helps!

You might be interested in

please can someone smart help me,please do not answer if you dont know the answer,also answer all these questions please:).

yarga [219]

Answer:

Number 7: 22.10 divided by 2.6 = 8.5 or 8.50 (depending on what your teacher prefers.

Step-by-step explanation:

Not sure about question 2 or 10

8 0

3 years ago

Determine the kinetic energy of a 100-kg roller coaster car that is moving with a speed of 20.0/ms.

rjkz [21]

Answer:

The kinetic energy is 20,000\ J

Step-by-step explanation:

The kinetic energy of a body is defined as:

$k = \frac{1}{2}ms ^ 2$

Where m is the mass of the roller coaster car

s is the speed and k is the kinetic energy

We know that $s = 20\ m/s$

$m = 100\ kg$

Then the kinetic energy of the roller coaster car is:

$k = \frac{1}{2}(100)(20) ^ 2\\\\k = 50(20) ^ 2\\\\k = 50 * 400\\\\k = 20,000\ J$

3 0

3 years ago

What slope does a vertical line have

Anika [276]

The slope on a vertical line will be 0

5 0

3 years ago

Read 2 more answers

Diego is planning to make a wooden cookbook stand for his mom. The depth of the stand will be 10 inches and will hold a cookbook

valentinak56 [21]

Answer:

dont know

Step-by-step explanation:

4 0

3 years ago

What is this simplified?

miv72 [106K]

Answer: -8 square root of 3 (choice a)

Step-by-step explanation:

You have to find 2 numbers that multiply to 48 and in the same time, 1 of these numbers is a perfect square. In this case, the numbers are 16 and 3. So -2√16*3

Then since 16 is. A perfect square, and the square root is 4, you take out the 4 and multiply it by -2 so that is -8 and now you are left with -8√3. Hopefully that helped.

7 0

3 years ago

Read 2 more answers