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OverLord2011 [107]

3 years ago

9

What is the unit rate for Fred's Sub shop?(Will post photo/link in the comments)

1 answer:

Setler79 [48]3 years ago

3 0

The answers to the following questions are as follows:

1. a. $10 for 2 subs
2. d. y = 5x + 2
3. b. -3/2
4. <span>d. Liberty Hill:It rises 3/4 foot for every 1 feet of horizontal travel.
</span>
I hope my answer has come to your help. God bless and have a nice day ahead!

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Show problem set up for full credit.

ikadub [295]

Answer:

If the arcs are the same

4x+25=5x

x=25

So, QPR is 4(25)+25

QPR is 125

6 0

3 years ago

A study done by researchers at a university concluded that % of all student athletes in this country have been subjected to som

Nostrana [21]

The missing digits is highlighted in bold form

A study done by researchers at a university concluded that 70% of all student-athletes in this country have been subjected to some form of hazing. The study is based on responses from 1800 athletes. What are the margin of error and 95% confidence interval for the study?

Answer:

Step-by-step explanation:

Given that:

The sample proportion $\hat p = 0.70$

The sample size n = 1800

At 95% confidence interval level:

The level of significance = 1 - 0.95 = 0.05

Critical value: $Z_{0.05/2} = Z_{0.025} = 1.96$

Thus, the Margin of Error E = $Z_{\alpha/2} \times \sqrt{\dfrac{\hat p ( 1- \hat p)}{n}}$

$= 1.96 \times \sqrt{\dfrac{ 0.70 ( 1-0.70)}{1800}}$

$= 1.96 \times \sqrt{\dfrac{ 0.70 ( 0.30)}{1800}}$

$= 1.96 \times \sqrt{\dfrac{0.21}{1800}}$

$= 1.96 \times \sqrt{1.16666667\times 10^{-4}}$

the Margin of Error E = 0.021

At 95% C.I for the population proportion will be:

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

= 0.70 ± 0.021

= (0.70 - 0.021, 0.70 + 0.021)

= 0.679, 0.721)

6 0

3 years ago

how do you think the angle measures of the new logo will compare with those of the old logo? make a conjecture. that, test your

worty [1.4K]

Wait what logo are you talking about? I don't understand .-.

6 0

4 years ago

Can 10 people be divided into two groups with a ratio of 1 : 2? Explain.

den301095 [7]

No

Let the groups be x and 2x

x+2x=10
3x=10
x=10/3

Its decimal not natual so can't be divided

3 0

2 years ago

Ice thickness decreases at a rate of 0.2 meters per week. After 7 weeks,the ice is only 2.4 meters thick. What is the equation f

sergiy2304 [10]

Answer:

The equation for relationship between the thickness and the number of weeks is f(x)=3.8 -0.2*x

Step-by-step explanation:

Ice thickness decreases at a rate of 0.2 meters per week. This can then be represented by the expression

f(x) = k - 0.2*x

where k is the thickness of the ice before the melting starts and x is the number of weeks.

After 7 weeks, the ice is only 2.4 meters thick. This means that x has a value of 7, while f (7) = 2.4. Replacing in the previous expression:

2.4=k -0.2*7

and solving you get:

2.4=k- 1.4

2.4 + 1.4= k

3.8= k

Then, <u><em>the equation for relationship between the thickness and the number of weeks is f(x)=3.8 -0.2*x</em></u>

7 0

3 years ago