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3 years ago

Help pls! this is due tonight. thanks!

Mathematics

2 answers:

erma4kov [3.2K]3 years ago

6 0

Answer:

Neon: 0

Oxide: -2

Copper: 2

Tin: 0

Step-by-step explanation: To solve you must add/subtract the numbers to get the charge, for example if its -30 charge from electrons and 10 charge from protons, -30 + 10 = -20 therefore the charge is -20

Eva8 [605]3 years ago

3 0

Answer: 0,-2,2,0

Step-by-step explanation:

Add the numbers together and you get the answers.

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The ratio of 9/5 is equal to

Nutka1998 [239]

The answer is 1 and 4/5. Just divide and put the remainder as the numerator and the numerator stays the same

6 0

3 years ago

Read 2 more answers

A rectangular picture frame has side lengths of 12 in by 9.5 in what is the length of the diagonal of the picture

OleMash [197]

Answer:

Length of diagonal of picture = 15.30 inches

Step-by-step explanation:

Given that:

Side lengths of picture frame = 12 inches by 9.5 inches

As the picture is rectangular, the diagonal will form hypotenuse of right angled triangle.

Using Pythagorean theorem;

a²+b²=c²

Putting the values in the theorem

$(12)^2 + (9.5)^2 = c^2 \\144+90.25=c^2\\c^2 = 234.25$

Taking square root on both sides

$\sqrt{c^2}=\sqrt{234.25}\\c=15.30$

Hence,

Length of diagonal of picture = 15.30 inches

3 0

3 years ago

Accounting procedures allow a business to evaluate their inventory costs based on two methods: LIFO (Last In First Out) or FIFO

ivanzaharov [21]

Answer: The FIFO method result in lower cost of inventory than the LIFO method.

Step-by-step explanation:

In the FIFO method old inventories are used to determine cost of goods sold (COGS), which result to less income because COGS is lesser, while it is greater in LIFO.

However, in LIFO, old and outdated inventories are valued lower than the present price. It not a good indicator of ending inventory value.

B. To calculate the degree of freedom of the inventory sample given: 1. 225221, 2. 119100, 3. 100113, 4. 212200, 5. 248245.

STEP 1. Find the mean or average of the samples.

Let x be the sample average, and N the sample size which is 5

x = 225221 + 119100 + 100113 + 212200 + 248245/5 = 180975.8

STEP 2. Degree of freedom Df is given as Df = N - 1

Remember, N is the sample size given as 5.

Df = 5 - 1 = 4.

CONCLUSION:

This shows that four numbers from the samples given have the freedom to vary as long as the average remains 180975.8.

8 0

3 years ago

Please help im giving 95 points

Iteru [2.4K]

A. How many amoebas are there after 1 hour

8 0

3 years ago

PLS I NEED RELLAY NEED HELP RIGHT NOW

Margaret [11]

Answer:

40%

Step-by-step explanation:

$\frac{8}{20} = \frac{2}{5}$

$\frac{2}{5} = 0.40$

0.40 = 40%

5 0

3 years ago