3 years ago

What is the value of 1/0?

Mathematics

1 answer:

MaRussiya [10]3 years ago

4 0

The correct answer is Undefined

I just did this in pre-calculus and I’m positive it is correct

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A study sampled 350 upperclassmen (Group 1) and 250 underclassmen (Group 2) at high schools around the city of Portland. The stu

iVinArrow [24]

Answer:

$-0.061 < P_1 -P_2< 0.025$

Step-by-step explanation:

Give data:

$n_1 = 350$

$n_2 =250$

$x_1 = 23$

$x_2 = 21$

$\hat{P} 1 = \frac{x_1}{n_1} = \frac{23}{350} = 0.066$

$\hat{P} 2 = \frac{x_2}{n_2} = \frac{21}{250} = 0.084$

for 95% confidence interval

$\alpha = 1 - 0.95 = 0.05 and \alpha/2 = 0.025$

$z_{\alpha/2} = 1.96$ from standard z- table

confidence interval for P_1 and P_2 is

$\hat{P} 1 - \hat{P} 2 \pm z_{\alpja/2} \sqrt{\frac{\hat{P} 1(1-\hat{P} 1)}{n_1} +\frac{\hat{P} 2(1-\hat{P} 2)}{n_2}}$

$(0.066 - 0.084) \pm 1.96 \sqrt{\frac{0.066(1-0.066)}{350} +\frac{0.084(1-0.084)}{250}}$

$-0.018 \pm 0.043$

confidence interval is

$-0.018 - 0.043 < P_1 -P_2$

$-0.061 < P_1 -P_2< 0.025$

7 0

3 years ago

I need help plz what’s the answer

Irina-Kira [14]

The person she should go to is Melinda

6 0

3 years ago

Read 2 more answers

Simplify 2x 2 - y for x = 3 and y = -2. 20 14 16 10 i need help please

disa [49]

2x^2-y

Plug in the values.

2(3)^2-(-2)

2(3)^2+2

Exponents first.

2*9+2

18+2

20

The answer is 20.

I hope this helps!
~kaikers

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3 years ago

A principal of $2800 is invested at 8% interest, compounded annually. How much will the investment be worth after 9 years?

Helga [31]

Answer:

2,016

Step-by-step explanation:

You do 2800 x 0.08 in ur calculator which is 224 and multiply that by 9

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3 years ago

What is the overall charge of phosphide

Nuetrik [128]

Answer:

negatively charged

Step-by-step explanation:

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3 years ago