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Stels [109]
2 years ago
10

A total of 250 people were surveyed about whether or not each person carries a cell phone. The results are shown below in the re

lative frequency table. Which statement is correct

Mathematics
2 answers:
Jet001 [13]2 years ago
7 0

<em>Answer:</em>

180 people

<em>Step-by-step explanation: </em>

None of them logically make sense. A is wrong because it is a higher amount of people who carry a cell phone than not. B and C is wrong because not 100% of people they interviewed carry a cell phone so D is the correct answer

Elena-2011 [213]2 years ago
3 0

Answer D

Im doing the exact same thing lol

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<img src="https://tex.z-dn.net/?f=-5x-16%2B9x%2Bx-1" id="TexFormula1" title="-5x-16+9x+x-1" alt="-5x-16+9x+x-1" align="absmiddle
Talja [164]

Answer:

I have no clue what it is sorry

7 0
2 years ago
In a survey of market, it is found that 143 persons use white toothpaste and 135 use red toothpaste. If 70 of them use both the
denpristay [2]

Answer:

let W and R represent white toothpaste and red toothpaste represently

n(W)=143

n(R)=135

n(WnR)=70

n( WuR)=?

Now,

n(WuR)=n(W)+n(R)_n(WnR)

=143+135_70

=208

that's all don't forget to write therefore.

6 0
3 years ago
1. Using the above
Ivan

Answer:

yes there is a correlation

Step-by-step explanation:

here's how I found this by looking up all key words.

4 0
1 year ago
Laura picked a crayon randomly from a box, recorded the color, and then placed it back in the box. She repeated the process and
ruslelena [56]
The answer is B. The next crayon Laura picks is NOT red.
8 0
3 years ago
Select the correct answer.<br> What is the solution to the equation?
Ierofanga [76]

Answer:

B

Step-by-step explanation:

\sqrt{x} + 6 = x ( subtract 6 from both sides )

\sqrt{x} = x - 6 ( square both sides )

x = (x - 6)² ← expand using FOIL

x = x² - 12x + 36 ( subtract x from both sides )

0 = x² - 13x + 36 , that is

x² - 13x + 36 = 0 ← in standard form

(x - 4)(x - 9) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 4 = 0 ⇒ x = 4

x - 9 = 0 ⇒ x = 9

As a check

Substitute these values into the equation and if both sides are equal then they are the solutions.

x = 4

left side = \sqrt{4} + 6 = 2 + 6 = 8

right side = x = 4

Since 8 ≠ 4 then x = 4 is an extraneous solution

x = 9

left side = \sqrt{9} + 6 = 3 + 6 = 9

right side = x = 9

Thus the solution is x = 9 → B

8 0
2 years ago
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