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lys-0071 [83]
3 years ago
13

Write an inequality, using x as the variable, that represents this situation

Mathematics
2 answers:
likoan [24]3 years ago
6 0
X is higher than sixteen
goblinko [34]3 years ago
5 0

Answer:

154 + 11x > 330

x > 16

Step-by-step explanation:

More than means > 330

x = per house

Equation:

154 + 11x > 330

Solving:

154 + 11x > 330

11x > 330 - 154

11x > 176

x > 16

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The town of Hayward (CA) has about 50,000 registered voters. A political research firm takes a simple random sample of 500 of th
timama [110]

Answer: (0.076, 0.140)

Step-by-step explanation:

Confidence interval for population proportion (p) is given by :-

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

, where \hat{p} = sample proportion.

n= sample size.

\alpha = significance level .

z_{\alpha/2} = critical z-value (Two tailed)

As per given , we have

sample size : n= 500

The number of Independents.:  x= 54

Sample proportion of Independents\hat{p}=\dfrac{x}{n}=\dfrac{54}{500}=0.108

Significance level 98% confidence level : \alpha=1-0.98=0.02

By using z-table , Critical value : z_{\alpha/2}=z_{0.01}=2.33

The 98% confidence interval for the true percentage of Independents among Haywards 50,000 registered voters will be :-

0.108\pm (2.33)\sqrt{\dfrac{0.108(1-0.108)}{500}}\\\\=0.108\pm2.33\times0.013880634\\\\=0.108\pm0.03234187722\\\\\approx0.108\pm0.032=(0.108-0.032,\ 0.108+0.032)=(0.076,\ 0.140)

Hence, the 98% confidence interval for the true percentage of Independents among Haywards 50,000 registered voters.= (0.076, 0.140)

8 0
3 years ago
Help please ................
tigry1 [53]

Answer:

187.25

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Will the sign of the product of two negative numbers be negative or positive? Explain your answer.
gogolik [260]

Answer:

A

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The sum of an infinite geometric series is 450, while the common ratio of the series is 4/ 5 . What is the first term of the ser
pogonyaev

Answer:

answer is 90 for first term

Step-by-step explanation:

Let the terms be  

First term x

We will use the formula s∞=x/1−r to find the sum of an infinite geometric series, where −1<r<1.  

We know the sum and the common ratio, so we'll be solving for x where r =4/5

s∞=x/1−r

450=x/1−4/5

450=x/1/5

450=5x

x=90

this is the first term x1 = 90

we know that common ratio is 4/5, so multiplying the first term by factor 4/5 to get the second term  

90 x 4/5=   72 second term  

7 0
3 years ago
Read 2 more answers
Cooper earned $660 as a furniture salesman this month. His earns a
Grace [21]
Ya got to go $660 + 7% hours later on $450 hours later 00.578 to finish
5 0
3 years ago
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