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3 years ago

5

Please help 50 points!!

2 answers:

Marianna [84]3 years ago

7 0

Answer:

the first one

Step-by-step explanation:

Since x can be any value, -infinity must be less than x because you can always subtract 1 from x. Also, infinity must be more than x because you can always add 1 to x.

Musya8 [376]3 years ago

3 0

Answer:

The third option is the correct answer because it is proving the property.

Thank you

I've answered as fast as I can to answer your question.Hope you understood it.

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The building site is 90 metres long and 45 metre wide.what is the area of the site

kolbaska11 [484]

Hey there,

We know that area is the size of a surface

First of all, <span>To find the </span>area<span> of a rectangle, multiply the length by the width. In this question the length would be 90 meters and the width would be 45 meters.

</span>90 x 45 = Area

90 x 45 = 4050

<span>Area = 4050m</span>²

8 0

4 years ago

Read 2 more answers

What is the vertex of the function f(x) =1/2 x2 + 3x +3/2 ?

dimaraw [331]

<em>The vertex for f(x) = 1/2 x2 + 3x +3/2 is:</em>

<u><em>(-3,-3)</em></u>

7 0

4 years ago

The Park Protectors is a group of elementary students and teachers from 3232 schools who pick up trash at local parks. The line

pshichka [43]

Answer:

$Each = \frac{15}{128}$

Step-by-step explanation:

Given

See attachment for line plot

Required

Determine the total trash picked

The data on the line plot can be represented as:

$Trash \to Schools$

$\frac{1}{8} \to 6$

$\frac{1}{4} \to 8$

$\frac{1}{2} \to 2$

$1 \to 0$

The total trash picked is:

$Total = \frac{1}{8} * 6 + \frac{1}{4} * 8 + \frac{1}{2} * 2 + 1 * 0$

$Total = \frac{3}{4} + \frac{8}{4} + 1+0$

Take LCM

$Total = \frac{3+8+4+0}{4}$

$Total = \frac{15}{4}$

The total picked by each school is:

$Each = \frac{Total}{32}$

$Each = \frac{15/4}{32}$

Rewrite as:

$Each = \frac{15}{4*32}$

$Each = \frac{15}{128}$

4 0

3 years ago

An inequality is shown below. x + 2.5 < 20 What is the greatest value of x from the set {10.5, 12.5, 17.5, 19.5} that makes t

34kurt

C is the final answer :)

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4 years ago

According to a 2010 study conducted by the Toronto-based social media analytics firm Sysomos, 71% of all tweets get no reaction.

lesya692 [45]

Answer:

Expected Number=71

Variance =4959

Standard Deviation= 70.42

Step-by-step explanation:

Expected Number = E (x) = np

Here p = 0.71 and q= 1- 0.71= 0.29 n= 100

Expected Number = E (x) = np = 0.71*100= 71

b) The Variance and Standard Deviation for the number of these tweets with no reaction

Suppose the number of tweets are hundred then the number of tweets with no reaction would be 71 .

Variance = E(x²) - [E(x)]² = (100)²- (71)²= 10000- 5041= 4959

Standard Deviation= √4959= 70.42

6 0

3 years ago