More electrons means a negative charge and fewer means a positive charge. ... If an atom were to gain or lose neutrons it becomes an isotope which means it becomes a different element.

3 0

3 years ago

Maria is planting a flower garden. Her garden will be shaped like a right triangle. She is going to plant different types of flo

r-ruslan [8.4K]

Answer:

a) 21.20 feet long b)51.20 feet of fencing

Step-by-step explanation:

a²+b²=c²

15²+15²=c²

225+225=c²

450=c²

√450=c

21.213=c

21.20=c

15+15+21.20= 51.20

5 0

4 years ago

The average annual out-of-pocket costs for an implant for Americans last year is estimated to be $2,488. Assume that this cost f

Alenkinab [10]

Answer:

58.73%

Step-by-step explanation:

What we must do is calculate the z value for each value and thus find what percentage each represents and the subtraction would be the percentage between those two values.

We have that z is equal to:

z = (x - m) / (sd)

x is the value to evaluate, m the mean, sd the standard deviation

So for 2400 we have:

z = (2400 - 2488) / (250)

z = -0.35

and this value represents 0.3632

for 89 we have:

z = (2900 - 2488) / (250)

z = 1.65

and this value represents 0.9505

we subtract:

0.9505 - 0.3632 = 0.5873

Therefore the probability would be 58.73%

6 0

4 years ago