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sattari [20]
3 years ago
13

How many ways can you listen to 3 songs from a CD that has 12 selectoins?

Mathematics
1 answer:
tiny-mole [99]3 years ago
3 0
36 because you can simply multiply them.
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A 1.0 l buffer solution is 0.15 m in hcn and 0.10 m in nacn. which action will destroy the buffer?
rjkz [21]

The buffer will probably be destroyed by the addition of HCN.

<h3>What is buffer solution?</h3>

A weak acid and the conjugate base of the weak acid, or a weak base and the conjugate acid of the weak base, are combined to form the buffer solution, a water-based solvent solution. They withstand being diluted or having modest amounts of acid or alkali added to them without changing their pH.

Given that a 1.0 l buffer solution is 0.15 m in HCN and 0.10 m in NaCN.

We need to find a action which one destroy the buffer solution.

A buffer is a substance made of salt and a weak acid that is beneficial. From the aforementioned chemicals, HCN is a potent acid and NaCN is a salt between HF and NaCN. Therefore, the buffer will probably be destroyed by the addition of HCN.

To learn more about buffer solution from the given link

brainly.com/question/22390063

#SPJ4

8 0
2 years ago
Please help me i really need help please help me please i really really need help please
sattari [20]

Answer:

117

Step-by-step explanation:

Okay, the problem is asking that we find the hypotenuse of this triangle (AKA, the lake.)

a²+b²=c²

A= 75

B= 90

C is always the hypotenuse.

75²+90²= c²

5,625+8,100= 13,725

√13,725= 117.15374513859981591194584103639

To the nearest whole number: 117

To the nearest tenth: 117.2

Hope this helps!

8 0
3 years ago
Evaluate the expression 4x/2x for x=3
gayaneshka [121]

Hey there!

If \bold{x=3} then your equation becomes \downarrow

\bold{\frac{4(3)}{2(3)}}

  • \bold{4\times3=12}
  • \bold{2\times3=6\\}
  • Your equation should becomes: \bold{\frac{12}{6}=2}
  • \boxed{\boxed{\bold{Answer:2}}}

Good luck on your assignment and enjoy your day

~\bold{LoveYourselfFirst:)}

5 0
3 years ago
PLEASE HELP!!! WILL MARK BRAINLEST!!
padilas [110]

Answer:

900.43

Step-by-step explanation:

First find the sales tax

827.98 * 8.75%

827.98*.0875 =72.45  ( rounded to the nearest cent)

Add this to the price of the tv

827.98 +72.45=900.43

5 0
3 years ago
Read 2 more answers
Find the slope and the y-intercept of the line.<br> 1=2x-5
ankoles [38]

Answer:

hyxxtxtdtxtxtdfyfytzt

6 0
3 years ago
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