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Arada [10]
3 years ago
8

Which of the following represents the set "all values of x greater than or equal to −1 and less than 2" in set builder notation?

Mathematics
2 answers:
Andru [333]3 years ago
7 0

Answer:  B. {x | −1 ≤ x < 2}

Step-by-step explanation:

Sign we use to denote less than '<' .

Sign we use to denote greater than or equal  : '\geq'

The expression to show all values of x greater than -1 : -1 \leq x

The expression to show all values of x less than 2 : x

Now , the expression is used to show  "all values of x greater than or equal to −1 and less than 2".

{x | −1 ≤ x < 2}

So , the correct answer : B. {x | −1 ≤ x < 2}

RoseWind [281]3 years ago
3 0
Im  thinkking B because to me it just makes most sense

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Refer to the previous exercise. The researchers wanted a sufficiently large sample to be able to estimate the probability of pre
Maru [420]

Answer:

<em>The large  sample n = 117.07</em>

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that the estimate error (M.E) = 0.08

The proportion (p) = 0.75

q =1-p = 1- 0.75 =0.25

Level of significance = 0.05

Z₀.₀₅ = 1.96≅ 2

<u><em>Step(ii):-</em></u>

The Marginal error is determined by

M.E = \frac{Z_{0.05} \sqrt{p(1-p)}  }{\sqrt{n} }

0.08 = \frac{2 X \sqrt{0.75(1-0.75)}  }{\sqrt{n} }

Cross multiplication , we get

\sqrt{n}  = \frac{2 X \sqrt{0.75(1-0.75)}  }{0.08 }

√n = \frac{2 X0.4330}{0.08} = 10.825

squaring on both sides , we get

n = 117.07

<u><em>Final answer:-</em></u>

<em>The large  sample n = 117.07</em>

6 0
2 years ago
Rewrite the equation in slope intercept form:<br> X/3+y/5=1
svet-max [94.6K]

Answer:

y=-3/5x+5

hope this helps

7 0
3 years ago
Last month, customers at a gift shop bought 40 birthday cards,
Iteru [2.4K]

Answer:

32 People

Step-by-step explanation:

I put 40 (Number of birthday cards bought previously) over 125 (Number of expected costumers) and multiplied it by 100 (Total number of card bought previously) to get my answer. Hopefully that helps :)

7 0
3 years ago
1. What is the equation of the midline of the sinusoidal function?
Anna [14]

5x + 5 = 100 \\ 5x = 100 - 5 \\ 5x = 95 \\ x =  \frac{95}{5}  \\ x = 19

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7 0
3 years ago
Read 2 more answers
When 80% of a number is added to the number, the result is 252. what is the number
Rashid [163]
I Think The Answer Is 140.

The Expression: 0.8x + x = 252 Can Explain The Answer If x = 140.
Or: 1.8 Times x = 252 If x = 140.

3 0
3 years ago
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