All categories

3 years ago

8 powered to the next third - 9•2 divided by 3

Mathematics

1 answer:

Svet_ta [14]3 years ago

4 0

Answer:

2³ = 2 · 2 · 2 = 8

The phrase "two to the third power" or "two cubed" has a base of 2, an exponent of 3, and means that 2 is used as a factor 3 times. When math is typed on one line rather than written by hand, 2³ is sometimes written as 2^3 where the caret seperates the base from the exponent so the expression translates as "2 to the 3rd power."

Step-by-step explanation:

You might be interested in

Hey, I'm bo.red anyone wanna pl.ay Fort.nite with me? :,)

Karo-lina-s [1.5K]

Answer:

Step-by-step explanation:

yes how you doing tonight

6 0

3 years ago

Read 2 more answers

In a random sample of students who took the SAT test, 427 had paid for coaching courses and the remaining 2733 had not. Calculat

Dvinal [7]

Answer:

The 95% confidence interval for the proportion of students who get coaching on the SAT is (0.1232, 0.147).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the z-score that has a p-value of $1 - \frac{\alpha}{2}$ .

427 had paid for coaching courses and the remaining 2733 had not.

This means that $n = 427 + 2733 = 3160, \pi = \frac{427}{3160} = 0.1351$

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a p-value of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.1351 - 1.96\sqrt{\frac{0.1351*0.8649}{3160}} = 0.1232$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.1351 + 1.96\sqrt{\frac{0.1351*0.8649}{3160}} = 0.147$

The 95% confidence interval for the proportion of students who get coaching on the SAT is (0.1232, 0.147).

8 0

3 years ago

Que números primos son mayores que -6

kumpel [21]

No sé, prueba 2,3,5,7,11,13....
Hay muchos números primos!

7 0

3 years ago

If the simple interest on $6,000 for 4 years is $1,920, then what is the interest rate?

Vsevolod [243]

Answer:

8 percent

Step-by-step explanation:

Since the formula for interest rate is the original money, the amount of years, and the inetrest rate multiplied together, we could plug it into an equation. 6000 times 4 times the ineterest rate is equal to 1920. 6000 times 4 is 24000. 1920 divided by 24000 is equal to 0.08 or 8 percent.

6 0

3 years ago

Is 0.123456789 irrational

Sunny_sXe [5.5K]

Not if it ends at 9, like you typed it.

3 0

3 years ago

Read 2 more answers