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Mnenie [13.5K]
3 years ago
15

There is a proportional relationship between any length measured in centimeters and

Mathematics
1 answer:
natita [175]3 years ago
4 0
Multiply each number by 10. The constant of proportionality is 10. You can do it!!
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Carly bought a new house for $125,000. The value of the house appreciates approximately 3.5% each year. What will be the value o
Hatshy [7]
So using a calculator this question is really easy 125,000x 1.35 ^10 =. 
<span>2513319</span>
8 0
4 years ago
A survey of 200 students is selected randomly on a large university campus. They are asked if they use a laptop in class to take
Lina20 [59]

Answer:

The 95% confidence interval for the true proportion of university students who use laptop in class to take notes is (0.2839, 0.4161).

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for population proportion <em>P</em> is:

CI=p\pm z_{\alpha/2}\sqrt{\frac{p(1- p)}{n}}

The information provided is:

<em>x</em> = number of students who responded as"yes" = 70

<em>n</em> = sample size = 200

Confidence level = 95%

The formula to compute the sample proportion is:

p=\frac{x}{n}

The R codes for the construction of the 95% confidence interval is:

> x=70

> n=200

> p=x/n

> p

[1] 0.35

> s=sqrt((p*(1-p))/n)

> s

[1] 0.03372684

> E=qnorm(0.975)*s

> lower=p-E

> upper=p+E

> lower

[1] 0.2838966

> upper

[1] 0.4161034

Thus, the 95% confidence interval for the true proportion of university students who use laptop in class to take notes is (0.2839, 0.4161).

7 0
4 years ago
Read 2 more answers
Which equation is satisfied by all three of the plotted points?
Elan Coil [88]

Answer:

Use desmos graphing calculator plug in your equations and see which one has all points.You can use desmos for a bunch of stuff too

Step-by-step explanation:its C though

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8 0
3 years ago
Read 2 more answers
((60 points to whoever answers all of these))
Readme [11.4K]
1. 9^2

2. 15^3

3. 14^3

4. 11^5

5. 16^4
3 0
4 years ago
Read 2 more answers
What is the sum of the polynomials?<br> (6x+7+x^2)+(2x^2-3)
Oduvanchick [21]
Hai !
6x+7+x^2+2x^2-3
6x+7+x^2+2x^2+-3
combine like terms
6x+7+x^2+2x^2+-3
(x^2+2x^2)+(6x)+(7+-3)
=3x^2+6x+4
Cheers :3
4 0
4 years ago
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