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2 years ago

Drag each number to the correct location on the table. Not all numbers will be used.

Mathematics

1 answer:

VashaNatasha [74]2 years ago

6 0

The table for the complete ratios between distance and time is shown below.

<h3>What is the Ratio of Distance to Time?</h3>

The ratio of distance to time, given that 280 miles will be covered in 4 hours is: 280/4 = 70 miles per hour.

Thus, for 2 hours: 2(70) = 140 miles distance.

For 350 miles, we would have: 350/70 = 5 hours time.

For 6 hours: 6(70) = 420 miles distance.

For 8 hours: 8(70) = 560 miles distance.

For 700 miles, we would have: 700/70 = 7 hours time.

The complete table is shown in the image below.

Learn more about ratios on:

brainly.com/question/13513438

#SPJ1

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Sup peeps Can someone find the area of this plz

ziro4ka [17]

Answer:

Step-by-step explanation:

The following figure is a trapezium, 

So Given,

Parallel sides of the trapezium = 17ft and 39ft

Height of the trapezium = 16ft

Therefore, 

Area of the trapezium

$= \frac{1}{2} \times (sum \: of \: parallel \: sides) \times height$

$= \frac{1}{2} \times (17ft + 39ft) \times 16ft$

$= \frac{1}{2} \times 56ft \times 16ft$

$= 56ft \times 8ft$

$= 448 {ft}^{2}$

Hence,

448 sq.ft is the area of the trapezium (Ans)

7 0

3 years ago

Please help! see attached

nikdorinn [45]

Answer:

The lowest value of the confidence interval is 0.5262 or 52.62%
The highest value of the confidence interval is 0.5538 or 55.38%

Step-by-step explanation:

Here you estimate the proportion of people in the population that said did not have children under 18 living at home.It can also be given as a percentage.

The general expression to apply here is;

$C.I=p+-z*\sqrt{\frac{p(1-p)}{n} }$

where ;

p=sample proportion

n=sample size

z*=value of z* from the standard normal distribution for 95% confidence level

Given;

n=5000

Find p

From the question 54% of people chosen said they did not have children under 18 living at home

$\frac{54}{100} *5000 = 2700\\\\p=\frac{2700}{5000} =0.54$

To calculate the 95% confidence interval, follow the steps below;

Find the value of z* from the z*-value table

The value of z* from the table is 1.96

calculate the sample proportion p

The value of p=0.54 as calculated above

Find p(1-p)

$0.54(1-0.54)=0.2484$

Find p(1-p)/n

Divide the value of p(1-p) with the sample size, n

$\frac{0.2448}{5000} =0.00004968$

Find the square-root of p(1-p)/n

$=\sqrt{0.00004968} =0.007048$

Find the margin of error

Here multiply the square-root of p(1-p)/n by the z*

$=0.007048*1.96=0.0138$

The 95% confidence interval for the lower end value is p-margin of error

$=0.54-0.0138=0.5262$

The 95% confidence interval for the upper end value is p+margin of error

$0.54+0.0138=0.5538$

7 0

3 years ago

Read 2 more answers

A sum of money is invested at 12% compounded quarterly. About how long will it take for the amount of money to double?

Fofino [41]

Follow the given formula. The initial amount of money invested, P, becomes 2P (same thing as "doubles) after t years. Since compounding is quarterly, n=4. The annual interest rate is 12%. That is, r=0.12.

Then we have 2P = P (1 + 0.12/4)^(4t) and need only solve for time, t.

Simplifying the above equation: 2 = (1.03)^(4t)

We must isolate 4t, and then isolate t. To do this, take the common log of both sides of the above equation. We get:

log 2 = (4t) log 1.03. This gives us 4t = [log 2] / [log 1.03], or

4t = 23.4498

Dividing both sides by 4, we get t = 5.86 (years).

7 0

4 years ago

There are 3 questions and they are on each picture, I don't understand these so please help!

Lilit [14]

2A. Answer is 42.7. C squared minus B squared equals A squared. C^2 - B^2 = A^2. 48^2 - 22^2 = 42.66^2.

8 0

4 years ago

Graph each set of points. Which set represents equivalent ratios?

olga2289 [7]

I’m pretty sure it is B but i’m not positive.

5 0

3 years ago

Read 2 more answers