All categories

2 years ago

Alice created a kite out of two sticks and some fabric. The sticks were 10 inches and 15 inches long.

Mathematics

2 answers:

Paha777 [63]2 years ago

8 0

Answer:

vbiuds;;;hsd/.sd.d

Step-by-step explanation:

;gjduyds;SD;;;;dgulygdvddugfufdsuugiuigdfdsgiuiugsacs

DENIUS [597]2 years ago

6 0

Answer:

Area = 25 square inches.

Step-by-step explanation:

Consider the large base triangle first. The height is 15 - 5 = 10

The base across is 10 (the length of the smaller stick).

The Area of that triangle is 1/2 * b * h

Area = 1/2 * 10 * 10 = 50

Now the smaller triangle is the same base (the smaller stick of 10) * the height of 5

Area = 1/2 b * h

Area = 1/2 10 * 5

Area = 25

total area of the kite = 50 + 25 = 75

You might be interested in

Which statement is true about the function f(x)= StartRoot negative x EndRoot?

UNO [17]

Answer:

The domain of the graph is all real numbers less than or equal to 0

Step-by-step explanation:

we have the function

$f(x)=\sqrt{-x}$

we know that

The radicand must be positive

$-x \geq 0$

Solve for x

Multiply by -1 both sides

$x\leq 0$

The domain is the interval ------> (-∞,0]

All real numbers less than or equal to zero

The range of the function is the interval -----> [0,∞)

$f(x)\geq 0$

see the attached figure to better understand the problem

All real numbers greater than or equal to zero

<em><u>Verify each statement</u></em>

case 1) The domain of the graph is all real numbers

The statement is false

Because, the domain is all real numbers less than or equal to zero

case 2) The range of the graph is all real numbers

The statement is false

Because, the range is all real numbers greater than or equal to zero

case 3) The domain of the graph is all real numbers less than or equal to 0

The statement is true

case 4) The range of the graph is all real numbers less than or equal to 0

The statement is false

Because, the range is all real numbers greater than or equal to zero

4 0

3 years ago

Read 2 more answers

How to simplify mixed fraction like 6 15/9

Alex

Multiply 6 by 9 (whole number by denominator)
then add that to 15 (the product to the numerator.

6 0

2 years ago

Read 2 more answers

569000000000000000000000000 Round your answer to the nearest whole number.

Leto [7]

Answer:

it is already rounded to the nearet whole number.

Step-by-step explanation

There is no decimal point meaning that it is already a whole number.

5 0

2 years ago

Perform a statistical test for the given problem. Follow the steps in hypothesis testing when you present your results.

tatyana61 [14]

Using the t-distribution, as we have the standard deviation for the samples, it is found that since the test statistic is greater than the critical value for the right-tailed test, it is found that there is enough evidence to conclude that the treatment increases the survival time of patients.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, we test if the treatment did not increase the survival time, that is, the subtraction of means is 0, hence:

$H_0: \mu_T - \mu_W = 0$

At the alternative hypothesis, we test if the treatment has increased the survival time, hence:

$H_1: \mu_T - \mu_W > 0$

<h3>What is the distribution of the differences of means?</h3>

For each sample, we have that:

$\mu_W = 2.2625, s_W = \frac{0.75769858}{\sqrt{8}} = 0.2679$

$\mu_T = 4.5875, s_T = \frac{0.50267143}{\sqrt{8}} = 0.1777$

<h3 />

Hence, for the distribution of differences, the mean and the standard error are given by:

$\overline{x} = \mu_T - \mu_W = 4.5875 - 2.2625 = 2.325$

$s = \sqrt{s_W^2 + s_T^2} = \sqrt{0.2679^2 + 0.1777^2} = 0.3215$

<h3>What is the test statistic?</h3>

It is given by:

$t = \frac{\overline{x} - \mu}{s}$

In which $\mu = 0$ is the value tested at the null hypothesis.

Hence:

$t = \frac{\overline{x} - \mu}{s}$

$t = \frac{2.325 - 0}{0.3215}$

$t = 7.23$

<h3>What is the decision?</h3>

Considering a<em> right-tailed test</em>, as we are testing if the mean is greater than a value, with a <em>standard significance level of 0.05 and 8 + 8 - 2 = 14 df</em>, we have that the critical value is of $t^{\ast} = 1.7613$ .

Since the test statistic is greater than the critical value for the right-tailed test, it is found that there is enough evidence to conclude that the treatment increases the survival time of patients.

More can be learned about the t-distribution at brainly.com/question/13873630

8 0

2 years ago

Select all of the true statements below.

anyanavicka [17]

Answer:

Circles always contain arcs.
Lines always contain line segments.

3 0

1 year ago