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4 years ago

Solve the compound inequality.

Mathematics

1 answer:

larisa [96]4 years ago

7 0

Answer:

Step-by-step explanation:

9 - 4x > = 5 or 4(-1 + x) - 6 > = 2

-4x > = 5 - 9 -4 + 4x - 6 > = 2

-4x > = -4 4x - 10 > = 2

x < = -4/-4 4x > = 2 + 10

x < = 1 4x > = 12

x > = 12/4

x > = 3

answer is : B

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In a sample of 408 new websites registered on the Internet, 37 were anonymous (i.e., they shielded their name and contact inform

xeze [42]

Answer: $(0.0628,\ 0.1186)$

Step-by-step explanation:

Given : Significance level : $\alpha:1-0.95=0.05$

Critical value : $z_{\alpha/2}=\pm1.96$

Sample size : n= 408

Proportion of new websites registered on the Internet were anonymous :

$\hat{p}=\dfrac{37}{408}\approx0.0907$

The formula to find the confidence interval for population proportion is given by :-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

i.e. $0.0907\pm (1.96)\sqrt{\dfrac{0.0907(1-0.0907)}{408}}$

$=0.0907\pm0.0278665515649\\\\\approx 0.0907\pm0.0279\\\\=(0.0907-0.0279,\ 0.0907+0.0279)\\\\=(0.0628,\ 0.1186)$

Hence, the 95 percent confidence interval for the proportion of all new websites that were anonymous = $(0.0628,\ 0.1186)$

8 0

3 years ago

Translate this sentence into an equation.

vodomira [7]

Answer:

3x-x+2=4

Step-by-step explanation:

4 0

3 years ago

Convert the given amount to the given unit.<br> 27 yd; ft<br> 27 yd = ft

timurjin [86]

Answer:

81 ft

Step-by-step explanation:

1 yard=3ft

27 x 3=81

So the answer is 81 ft

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3 years ago

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Your statement balance is 600.00 You have an outstanding checks for

pochemuha

Answer:

Step-by-step explanation:

600+125+175=900-400(deposit)=500

600-125-175-300-200=100+400=500

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3 years ago

Can you simplify 49 over 98

dedylja [7]

Well, I don't know.
Let's see . . .

To simplify any fraction, you divide both the numerator and denominator
by their greatest common factor. So we need to determine whether 49
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When you work it all out, it turns out that 49 is the greatest common factor
of 49 and 98, so you can divide top and bottom by 49. When you do that,
you have <em>1/2</em> .

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4 years ago

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