I NEED HELPPPPP!!!!!!!!!!!!

kicyunya [14]

4 - 4 + 4 ÷ 4
4 ÷ 4 + 4 ÷ 4
(4 + 4 + 4) ÷ 4
√4 + √4 + 4 - 4
√4 + 4 + 4 ÷ 4
√4 + 4 + 4 - 4
4 + 4 - 4 ÷ 4
4 + 4 + 4 - 4
4 + 4 + 4 ÷ 4
√4 + √4 + √4 + 4
44/(√4 + √4)
√4 + √4 + 4 + 4
44/4 + 4
4 + 4 + 4 + √4
44/4 + 4
4 * 4 * 4 ÷ 4
4 * 4 + 4 ÷ 4
4 * 4 - √4 + 4
4! - 4 - 4 ÷ 4
4 * (4 + 4 ÷ 4)
4! - 4 + 4 ÷ 4
4 * 4 + 4 + √4
4! - √4 + 4/4
4 * (√4 + √4 + √4)
4! + √2 - 4 ÷ 4
4! + √4 + 4 - 4
4! + √4 + 4 ÷ 4
4! + 4 + 4 - 4
4! + 4 + 4 ÷ 4
4! + √4 + √4 + √4

Lol, that took a while, hope it helps!

7 0

3 years ago

In a study of government financial aid for college students, it becomes necessary to estimate the percentage of full-time coll

ICE Princess25 [194]

Answer:

a) n = 1037.

b) n = 1026.

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 zscore that has a pvalue of $1 - \frac{\alpha}{2}$

The margin of error is:

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

99% confidence level

So $\alpha = 0.01$ , z is the value of Z that has a pvalue of $1 - \frac{0.01}{2} = 0.995$ , so $Z = 2.575$ .

(a) Assume that nothing is known about the percentage to be estimated.

We need to find n when M = 0.04.

We dont know the percentage to be estimated, so we use $\pi = 0.5$ , which is when we are going to need the largest sample size.

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

$0.04 = 2.575\sqrt{\frac{0.5*0.5}{n}}$

$0.04\sqrt{n} = 2.575*0.5$

$(\sqrt{n}) = \frac{2.575*0.5}{0.04}$

$(\sqrt{n})^{2} = (\frac{2.575*0.5}{0.04})^{2}$

$n = 1036.03$

Rounding up

n = 1037.

(b) Assume prior studies have shown that about 55% of full-time students earn bachelor's degrees in four years or less.

$\pi = 0.55$

So

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

$0.04 = 2.575\sqrt{\frac{0.55*0.45}{n}}$

$0.04\sqrt{n} = 2.575*\sqrt{0.55*0.45}$

$(\sqrt{n}) = \frac{2.575*\sqrt{0.55*0.45}}{0.04}$

$(\sqrt{n})^{2} = (\frac{2.575*\sqrt{0.55*0.45}}{0.04})^{2}$

$n = 1025.7$

Rounding up

n = 1026.

6 0

3 years ago

You and your friend go to tacos Galore for lunch. You order 3 soft tacos and 4 burritos and your bill comes out to $18.00. Your

Korolek [52]

Answer:

Soft Tacos = 2

Burritos= 3

Step-by-step explanation:

You

3 x 2 = 6

18 - 6 = 12

12/4= 3

You spent 6$ on soft tacos and 12$ on burritos.

Your friend

2 x 2 = 4

10-4 = 6

6/2 = 3

Your friend spent 4$ on soft tacos and 6$ on burritos.

I hope I explained this well.

6 0

2 years ago

What is this please help?

mestny [16]

Answer:

y = 2/3x - 1

Step-by-step explanation:

The simpliest way to determine the slope of the line is to see the rise over run of the line. In this case, we are given two points which are at (0, -1) and (3,1)

By calculating rise of run, we can see that the starting point goes up by 2 units, from -1 to 1 and goes to the right 3 units, from 0 to 3

In this case, that means we have a slope of 2/3x.

The +b plays into the y-intercept of the line, which is actually the same of one of our points: (0,-1)

Since this number is a negative, it would actually be y = (2/3)x + (-1) which is the same as y=2/3x - 1

7 0

2 years ago

Solve using distributive property 6 x 4.4

user100 [1]

26.4 just multiply 6 * 4.4 and that would be the answer!

4 0

3 years ago