All categories

3 years ago

Gravitational potential energy and kinetic energy make up what type of energy?

Mathematics

1 answer:

Gnom [1K]3 years ago

3 0

Answer:

Step-by-step explanation:

i hope this is right

You might be interested in

Simplify. Remember to write the powers as a positive number.

larisa86 [58]

1. 1/a^8 (Sorry I can't find out what the others are)

5 0

3 years ago

Which negative angle is equivalent to 275°? O A. -75° OB. -65° O C. -95° OD. -85

Zarrin [17]

Answer:

-85º

Step-by-step explanation:

275 - 360 = -85

8 0

3 years ago

Please help!! will give brainliest! show how you did it

amid [387]

Answer:

Step-by-step explanation: since i helped can i have brainlist please :D

8 0

2 years ago

Need help with this one!!!

DaniilM [7]

$\bf (2x^2)^4(5x^6)\impliedby \textit{distributing the exponent}
\\\\\\
2^4x^{2\cdot 4}5x^6\implies 2^4\cdot 5x^{2\cdot 4}x^6\implies 16\cdot 5x^8x^6\implies 80x^{8+6}
\\\\\\
80x^{14}$

8 0

3 years ago

to arrive at 2000 liters of 60% saline solution the attendant has to mix a 90% and a 40% saline solution. How many liters of eac

CaHeK987 [17]

Answer:

800 liters of 90% saline solution and 1200 liters of 40% saline solution should be used.

Step-by-step explanation:

Given:

At 2000 liters of 60% saline solution the attendant has to mix a 90% and a 40% saline solution.

Now, to find the number of liters of saline solution each should be used.

Let the liters of 90% saline solution mix be $x.$

And let the liters of 40% saline solution mix be $y.$

So, the total number of liters:

$x+y=2000.$

$y=2000-x\ \ \ ....(1)$

Now, the total percentage of saline solution:

$90\%\ of\ x+40\%\ of\ y=60\%\ of\ 2000$

$\frac{90}{100}\times x+\frac{40}{100}\times y=\frac{60}{100}\times 2000$

$0.9x+0.4y=1200$

Substituting the value of $y$ from equation (1) we get:

$0.9x+0.4(2000-x)=1200$

$0.9x+800-0.4x=1200$

$0.5x+800=1200$

Subtracting both sides by 800 we get:

$0.5x=400$

Dividing both sides by 0.5 we get:

$x=800.$

The liters of 90% saline solution mix = 800.

Now, substituting the value of $x$ in equation (1) to get the liters of 40% saline solution:

$y=2000-x$

$y=2000-800$

$y=1200.$

Thus, the liters of 40% saline solution = 1200.

Therefore, 800 liters of 90% saline solution and 1200 liters of 40% saline solution should be used.

8 0

3 years ago