All categories

4 years ago

What’s this answer to this problem

Mathematics

1 answer:

Alisiya [41]4 years ago

6 0

Answer

Area: 3,818

Perimeter: 258

Type: Rectangle

Solution

To find the Area you have to do

Length x Width

so it is 83 times 46 which is 3818

To find Perimeter it is

Length + Length + Width + Width

or 83 + 83 + 46 + 46 = 258

For type i don’t know so probably the type is rectangle

You might be interested in

What is 12 divided by 2.5?

JulijaS [17]

Answer:

4.8

Step-by-step explanation:

Just divide

7 0

3 years ago

Read 2 more answers

Do political science classes require less writing than history classes? The 55 randomly selected political science classes assig

saul85 [17]

Answer:

We conclude that political science classes require less writing time than history classes at 0.01 level of significance.

Step-by-step explanation:

We are given that the 55 randomly selected political science classes assigned an average of 16.3 pages of essay writing for the course. The standard deviation for these 55 classes was 4.8 pages.

The 54 randomly selected history classes assigned an average of 18.9 pages of essay writing for the course. The standard deviation for these 54 classes was 5 pages.

Let $\mu_1$ = average writing time required by political science classes.

$\mu_2$ = average writing time required by history classes.

So, Null Hypothesis, $H_0$ : $\mu_1\geq\mu_2$ {means that political science classes require more or equal writing time than history classes}

Alternate Hypothesis, $H_A$ : $\mu_1$ {means that political science classes require less writing time than history classes}

The test statistics that would be used here Two-sample t test statistics as we don't know about the population standard deviation;

T.S. = $\frac{(\bar X_1-\bar X_2)-(\mu_1-\mu_2)}{s_p \sqrt{\frac{1}{n_1}+\frac{1}{n_2} } }$ ~ $t__n_1_-_n_2_-_2$

where, $\bar X_1$ = sample average pages of essay writing for political science classes = 16.3 pages

$\bar X_2$ = sample average pages of essay writing for history classes = 18.9 pages

$s_1$ = sample standard deviation for political science classes = 4.8 pages

$s_2$ = sample standard deviation for history classes = 5 pages

$n_1$ = sample of political science classes = 55

$n_2$ = sample of history classes = 54

Also, $s_p=\sqrt{\frac{(n_1-1)s_1^{2}+(n_2-1)s_2^{2} }{n_1+n_2-2} }$ = $\sqrt{\frac{(55-1)\times 4.8^{2}+(54-1)\times 5^{2} }{55+54-2} }$ = 4.90

So, test statistics = $\frac{(16.3-18.9)-(0)}{4.9 \sqrt{\frac{1}{55}+\frac{1}{54} } }$ ~ $t_1_0_7$

= -2.77

The value of t test statistics is -2.77.

Now, at 0.01 significance level the t table gives critical value of -2.365 at 107 degree of freedom for left-tailed test.

Since our test statistics is less than the critical value of t, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which we reject our null hypothesis.

Therefore, we conclude that political science classes require less writing time than history classes.

3 0

3 years ago

Pls HELP meeee. My child needs some real help I I wish I would’ve took those college lessons.

Ksenya-84 [330]

I think the answer would be 75%, meaning that the orange juice would have a greater percentage of water.

3 0

3 years ago

Read 2 more answers

On average, Carson saves about 53% of his allowance each month. When creating a circle graph of what Carson does

Julli [10]

Answer:

i said i like it like that

Step-by-step explanation:

that boy sus

6 0

3 years ago

Can u help me plz fast

Oduvanchick [21]

Answer:

the answer is smallest to biggest

Step-by-step explanation:

3 0

3 years ago