Test - Par Parallel Lines & Transversals

Answer:

Step-by-step explanation:

...

Answer:

b) time to finish the race

c) score on science test

Step-by-step explanation:

Answer:

The margin of error for a 96% confidence interval is of 0.0114 = 1.14%.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].

The margin of error is given by:

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

For this problem, we have that:

[tex]n = 400, p = \frac{395}{400} = 0.9875[/tex]

96% confidence level

So [tex]\alpha = 0.04[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.04}{2} = 0.98[/tex], so [tex]Z = 2.056[/tex].

Calculate the margin of error for a 96% confidence interval.

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

[tex]M = 2.056\sqrt{\frac{0.9875(0.0125)}{400}}[/tex]

[tex]M = 0.0114[/tex]

The margin of error for a 96% confidence interval is of 0.0114 = 1.14%.

Answer:

28 short race volunteers

76 long race volunteers

Step-by-step explanation:

Let :

Short races = a

Long races = b

LAST YEAR:

7a + 8b = 804 - - - - (1)

THIS YEAR:

11a + 5b = 688 - - - (2)

Multiply (1) by 5 and (2) by 8

35a + 40b = 4020

88a + 40b = 5504

Subtract

-53a = - 1484

a = 1484 / 53

a = 28

Put a = 28 in equation (1)

7(28) + 8b = 804

196 + 8b = 804

8b = 804 - 196

8b = 608

b = 76

28 short race volunteers

76 long race volunteers

Answer:

No

Step-by-step explanation:

try to graph the points on a graph or on a graphing calculator,

heres an image:

Answer:

i think more

Step-by-step explanation:

Answer:

total pay $2,750.00

Step-by-step explanation:

first multiply. 03×75,000= $2250.00 (thats how mich commission she has made

then add 500 be she exceeded the 2000 amount

2250+500= $2,750.00

Answer:

x + y + 1

or

xy + y² + 2

or

x² + y² - 1

or

a²b + b³ + 3

Step-by-step explanation:

You can use x and y as the two variables. Then add them to make is x + y (this is already two variables and two terms). Add a constant, say 1. So x + y + 1, now we have three terms with two different variables and one constant.

Or you can also make it xy + y² + 2 or x² + y² - 1 by adding exponents to each of the variable.

You can choose one from the above or you can make your own (it depends on you).

Answer:

Step-by-step explanation:

d-4=19d=15

We move all terms to the left:

d-4-(19d)=0

We add all the numbers together, and all the variables

-18d-4=0

We move all terms containing d to the left, all other terms to the right

-18d=4

d=4/-18

d=-2/9

Answer:

x > 7

Step-by-step explanation:

2x - 8 > 6

2x > 6 + 8

2x > 14

x > 7

Answer:

first one is 127,000 second one is 866,000

Step-by-step explanation:

Answer:

272162that's how you round it because 6 is greater than 5 so u can round it up from 0 to 1

Your answer would be C

Step-by-step explanation:

Answer: The answer is B

Step-by-step explanation this is the answer because when you write a number line vertically then it's oriented from top to bottom

Answer:

Pretty sure it's one solution

Step-by-step explanation:

Answer:

An infinite number of solutions.

Step-by-step explanation:

Whenever lines overlap each other, it means they have an infinite number of solutions.

Answer:

converting to minutes

Step-by-step explanation:

3*60+20+40+2.75*60=405 min = 6 hours 45 minutes

Answer:

6 hours and 45 minutes

Step-by-step explanation:

2.75 hours = 2 hours and 45 minutes

3 hours 20 minutes

0 hours 40 minutes

2 hours 45 minutes

5 hours 105 minutes

6 hours 45 minutes

Answer:

A.She used the incorrect inverse operation.

Step-by-step explanation:

Hopefully it is help

Answer:

its to blurry

Step-by-step explanation:

Answer:

an individual's financial irresponsibility may affect them

Answer:

An individual’s financial irresponsibility may affect the community

Step-by-step explanation:

Answer:

x=3

Step-by-step explanation:

15+17+5x = 47

if you add 15 and 17 just to make it easier, you get....

32+5x = 47

what I did next was minus 32 from each side.

so you are left with....

5x = 15

divide each side by 5 and you get

x = 3

you can go back and make sure that- that is right by doing 15+17=32 and

5x3 = 15 then add them together, 32+15 = 47

Answer:  x = 32°

Step-by-step explanation:

(3x - 4) + (3x - 8) = 180

3x - 4 + 3x - 8 = 180

6x - 12 = 180

6x - 12 + 12 = 180 + 12

6x = 192

6x ÷ 6 = 192 ÷6

x = 32

Answer: 21

Step-by-step explanation: We are given that angle ABC is dilated with center P.

Scale factor=3

Angle A'B'C' is formed after dilation of angle ABC.

Dilation: when a figure is dilated by scale factor a then, the figure shape does not change.

After dilation, the size of figure changes.

The initial figure and the figure obtained after dilation are similar in shape.

When two figures are similar then , the angles of one figure are  congruent to its corresponding angles in other figure and ratio of their corresponding sides are equal.

The measure of angle ABC=21'

After dilation by scale factor 3 then, the measure of angle A'B'C' remains=21'

Because the shape does not change in dilation transformation.

Answer:

1.=8.1

2.=10.4

Step-by-step explanation:

Answer:

490

Step-by-step explanation:

19.6

25

980

3920

4900

then add the decimal

490.0

Answer:

i think it's square foot of4

Answer:

B A A B A

Step-by-step explanation:

Minimum number of tents are 11.

Here,

32 athletes are going camping for the weekend.

3 athletes can sleep in one tent.

We have to find the minimum number of tents.

What is Number system?

A system of writing to express number is called Number system.

Now,

Number of athletes = 32

Number of athletes in one tent = 3

Hence, Minimum number of tents = 32 ÷ 3

We get 11 tents for 32 athletes.

Therefore, Minimum number of tents are 11.

Learn more about the number system visit:

https://brainly.com/question/19460684

#SPJ2

Answer:

752

Step-by-step explanation:

752 are the only digits that when put together, round to 800.

Answer:

1 second = 6.4 feet

25 seconds = 6.4 * 25 = 160 feet

Answer:

160ft

Step-by-step explanation:

So we already know the unit rate, all we need to do is find how many times the fly can go 6.4 feet in 25 seconds, so our equation is:

25 x 6.4 = 160

So our housefly can fly 160 feet in 25 seconds