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2 years ago

Why does the notation 13c- have a negative sign

1 answer:

6 0

<span>The negative symbol or negative sign simply indicates that for the C ion, there are more electrons than proton. Since it is – alone without number, this automatically indicates a number of -1. This means that there is one more electron than proton.</span>

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A circular logo is enlarged to fit the lid of a jar. The new diameter is 50 per cent larger than the original. By what percentag

laila [671]

25% because u have to divide the diameter of the logo to get the radius.

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2 years ago

Hannah and Corrine are playing a game by rolling two cubes, each numbered 1 through 6. If the sum of the numbers on the cubes is

Katarina [22]

Answer:

D. Corrine is not correct because Hannah also wins if 6 is on the first cube and 1 is on the second, if 5 is on the first cube and 2 is on the second, and if 4 is on the first cube and 3 is on the second.

Step-by-step explanation:

To get a sum of 7 by rolling two cubes, we need to get one of the combinations from the list below:

1 on the first cube, 6 on the second cube

6 on the first cube, 1 on the second cube

2 on the first cube, 5 on the second cube

5 on the first cube, 2 on the second cube

3 on the first cube, 4 on the second cube

4 on the first cube, 3 on the second cube

Therefore, the correct answer option is D. Corrine is not correct because Hannah also wins if 6 is on the first cube and 1 is on the second, if 5 is on the first cube and 2 is on the second, and if 4 is on the first cube and 3 is on the second.

7 0

2 years ago

If the team’s average time is less than one minute per leg, then the eighth graders earn 50 points. If not, the seventh graders

White raven [17]

Answer:

the seventh grader because the eighth graders got 58 which is more than 50 so the 7th grader would get the pts

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Please help me with this question

natulia [17]

what's up

Seek understand, to be understood!

To get the answer we need the formula or source.

The question in another way if 4cm=1.2km, what is the 10cm=--------

first, you have to use the crisscross.

4cm=1.2km

10cm= x it is variable

then, 4xx= 1.2kmx10cm

4x=12km

4x/4= 12/4

x=3km

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2 years ago

Is this relation a function? {(2, 5), (3, 8), (4, 6), (7, 20)} Yes No

SVEN [57.7K]

Yes the x values are all different, if two were the same then it would not be one but in this case it is

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2 years ago