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Ilya [14]
3 years ago
8

Marianne wanted to know students' opinion on the new schedule at school. She survey's the first

Mathematics
1 answer:
Sonja [21]3 years ago
6 0

I think it is a Convience Sampling.

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What is the estimate of a door in feet
AleksandrR [38]

The height of an interior residential door is about 7 ft.

Doors on commercial buildings or upscale residences may be taller. The usual width is about 3 ft.

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My front door measures 6 2/3 ft high by about 3 ft wide. My bedroom doors are 2 1/2 ft wide. The minimum for ADA-compliant doors is 2 2/3 ft.

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3 years ago
The table shows information about the numbers of hours 30 children spent on their tablets one evening.A) Find the class interval
Tresset [83]

Answer:

A- 2<h<3   B- 2.2

Step-by-step explanation:

 when you make a dot plot, the median is 11. using that dot plot, you can approximate a mean to be around 2

8 0
3 years ago
Find a quadratic polynomial whose sum of zeroes and product of zeroes are respectively 0, <img src="https://tex.z-dn.net/?f=%20%
erastovalidia [21]
A + b = 0
ab = √(5)

since b = -a, subst into other equation

ab = √5
a(-a) = √5
-a² = √5
a² = - √5
a =±  (5)^(1/4)·i

so our two zeros are (5)^(1/4) · i and -(5)^(1/4) · i.

Our polynomial has equation

y = \left( x - 5^{1/4} \cdot \mathrm{i}\right) \left( x + 5^{1/4} \cdot \mathrm{i}\right)

difference of squares: (x + y)(x - y) = x² - y² so

\\ y = (x)^2 - \left( 5^{1/4} \cdot \mathrm{i} \right)^2 \\&#10;y = x^2 - 5^{1/2} \cdot i^2 \\&#10;y = x^2 + 5 ^{1/2} = x^2 + \sqrt{5}


your polynomial is
y = x² + √(5)
y = x^2 + sqrt(5)
8 0
3 years ago
Solve. h - 18 1/2 = -7 3/4
barxatty [35]
Make the denominators the same:

h - 18( \frac{2}{2}) ( \frac{1}{2}) =  \frac{2}{4} = -7 \frac{3}{4}

bring the 18 1/2 to the other side: 

h=11 1/4
7 0
3 years ago
A company plans to sell embroidered hats for $15 each. the company’s financial planner estimates that the cost, y, of manufactur
Dafna11 [192]

The minimum number of hats the company must sell to make a profit will be B. 401.

<h3>What is profit?</h3>

It should be noted that profit simply means the gain that's derived from the sale of a good.

In this case, the company plans to sell embroidered hats for $15 each. To make profit, the company will need to sell 401 hats.

Learn more about profit on:

brainly.com/question/19104371

#SPJ4

6 0
1 year ago
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