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4 years ago

How to find an area of a polygon

1 answer:

5 0

Hellllooo!!

First, write down the formula for finding the area of a regular polygon. To find the area of a regular polygon, all you have to do is follow this simple formula: area = 1/2 x perimeter x apothem. Here is what it means: Perimeter = the sum of the lengths of all the sides.

~Brooke❤️

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Write an algebraic expression for the product of a number and 17

faltersainse [42]

Answer:

x · 17

Step-by-step explanation:

algebraic expression = variable

a number = x

product = multiplication

4 0

3 years ago

What are the solutions of the equation x4 – 5x2 – 14 = 0? Use factoring to solve.

tangare [24]

Answer:

x² - 7 = 0

x² = 7

x =

or x=

x² + 2 = 0

x² = - 2, this part of equation has no solutions.

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers

In March, Delphine's house had 40\%40% more snowfall than in February. Delphine's house had ff centimeters of snowfall in Februa

gregori [183]

Answer: 1.4 f or $1f +\frac{4f}{10}$

Step-by-step explanation:

Since, According to the question,

The snowfall in February in Delphine's house had = f cm

Again according to the question,

In March, Delphine's house had 40% more snowfall than in February.

Therefore, The snowfall in March in Delphine's house had = 140% of The snowfall in February in Delphine's house had

= 140 % of f

= $\frac{f\times 140}{100}$

= 1.4 f cm

= 1 f + 0.4 f

= $1 f + \frac{4f}{10}$ cm

4 0

3 years ago

Read 2 more answers

A twizzler factory makes regular 8in, king size 10in, extra long 16in, and snack size 3in twizzlers. Before packaging the candy,

serious [3.7K]

Answer:

Step-by-step explanation:

fdsdfghjhgv njhgfghj nbhgvfgbh nhgvfbhg huygvbh huyvg hbv

8 0

3 years ago

A bag of M&Ms was randomly selected from the grocery store shelf, and the color counts were:

Tresset [83]

Answer: 95% confidence interval for the proportion of yellow is (0.125,0.275).

Step-by-step explanation:

Since we have given that

n = 22+22+22+12+15+15=108

x = yellow = 22

So, $\hat{p}=\dfrac{22}{108}=0.20$

We need to find the 95% confidence interval.

So, z = 1.96

So, Interval would be

$\hat{p}\pm z\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.20\pm 1.96\times \sqrt{\dfrac{0.2\times 0.8}{108}}\\\\=0.20\pm 0.075\\\\=(0.20-0.075, 0.20+0.075)\\\\=(0.125, 0.275)$

Hence, 95% confidence interval for the proportion of yellow is (0.125,0.275).

4 0

3 years ago