1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nydimaria [60]
3 years ago
9

A leading medical journal has claimed that 71% of roller coaster rides get extreme anxiety just before the ride begins. A popula

r theme park wants to conducts a survey to verify this the patrons in their park and wants to do so with a margin of error of +8%. What minimum sample size, rounded to the nearest whole person, would the theme park need to use?
A. N ≥ 129
B. N ≥ 118
C. N ≥ 150
D. N ≥ 75
Mathematics
1 answer:
Anastasy [175]3 years ago
8 0

Answer:

A

Step-by-step explanation:

You might be interested in
On Saturday, many tickets for a hockey game were sold. Children and adult tickets were sold in the ratio of 4:7. There are 88 ti
Illusion [34]

Answer:

49 tickets

Step-by-step explanation:

THis is pretty straight forward

So we have the ratio 4:7

We know there were 88 tickets in total but we don’t know the exact amount of adult and kids

So we can Add up the ratio

4+7=11

Now we can divide 88 by 11

you’ll get 7

So by doing this we know there are 7 groups of the ratio for child to adults 4:7

So we just multiply the 7 to each

4*7

7*7

you’ll get 28:49

Now we know there are 28 kid tickets and 49 adult tickets

We know this is correct becuase if you add up the ratio, it’ll be 88

Which is the same as the amount fo people at the hockey game

6 0
3 years ago
Triangle ABC was transformed using the rule (x, y) →(-y,
CaHeK987 [17]

Answer:

A the first one ( the rotation of 90 degree)

Step-by-step explanation:

Please mark as brainliest if it helps. I need to rank up.

3 0
3 years ago
Read 2 more answers
To make the expression 4x-2 + (2x + 4) equivalent to 2(6x + 7), what must be the value in the box?
podryga [215]

4x - 2 + (2x + 4) = 2(6x + 7) \\

4x - 2 + 2x + 4 = 12x + 14

Simplification

6x + 2 = 12x + 14

Subtract sides 2

6x + 2 - 2 = 12x + 14 - 2

Simplification

6x = 12x + 12

Subtract sides -12x

6x - 12x = 12x - 12x + 12

Simplification

- 6x = 12

Divided sides by -6

\frac{ - 6}{ - 6}x =  \frac{12}{ - 6} \\

x =  - 2

It is must be in the box buddy.

And we're done...♥️♥️♥️♥️♥️

5 0
3 years ago
Use the image below to answer the following question. Find the value of sin x° and cos y°. What relationship do the ratios of si
kozerog [31]

The ratios of sin x° and cos y° are 15/8.

We have given that,

Use the image below to answer the following question.

We have to determine to find the value of sin x° and cos y°.

By applying Pythagoras theorem in the triangle given in the picture,

<h3>What is the Pythagoras theorem?</h3>

(Hypotenuse)² = (leg 1)² + (leg 2)²

PO² = (15)² + 8²

PO² = 225 + 64

PO = √289

PO = 17

By applying the sine rule in the given triangle,

sin(x°) = Opposie side/hypotenous

         = 15/17

cos(y°) = Adjucent side/hypotenous

          = 8/17

The relation between the ratio of sin(x) and cos(x) will be,

\frac{sinx}{cosx} =\frac{\frac{15}{17} }{\frac{8}{17} }

=\frac{15}{8}

Therefore the ratios of sin x° and cos y° are 15/8.

To learn more about the trigonometric function visit:

brainly.com/question/24349828

#SPJ2

       

5 0
2 years ago
Find the y-intercept for the parabola defined by the equation y=x^2-x-12
o-na [289]

Answer:

The y-intercept is (0,-12).

Step-by-step explanation:

Given equation is y=x^2-x-12.

Now question says to find the y-intercept of the given parabola y=x^2-x-12.

We know that y-intercept means the y-value when x-value equals 0

so let's plug x=0 into given equation y=x^2-x-12  then solve that for y.

y=x^2-x-12

y=0^2-0-12

y=0-0-12

y=-12

Hence the y-intercept is (0,-12).

6 0
3 years ago
Other questions:
  • According to the world atlas (2010) the population of New York City was 19,750,000, the population of Los Angeles was 15,250,000
    11·1 answer
  • X is greater than -9 and less than or equal to 4 use x only once in your inequality
    9·1 answer
  • Estimate to check for reasonables. 306×21​
    9·1 answer
  • (1,9),m=4 in intercept from
    13·1 answer
  • A number that has a whole number part and a fraction part is a
    15·2 answers
  • An oblique cylinder has a diameter of 14 units. The volume of the cylinder is 1,176π cubic units. An oblique cylinder has a diam
    8·2 answers
  • Please answer this question correctly
    11·1 answer
  • <img src="https://tex.z-dn.net/?f=%28m-9%29%28m-3%29" id="TexFormula1" title="(m-9)(m-3)" alt="(m-9)(m-3)" align="absmiddle" cla
    11·1 answer
  • You want to buy a shirt that is $25 and you have a 10% off coupon. If you use the coupon, how much money will be taken off the s
    14·1 answer
  • What is the equation of the line that has a slope of 1/3 and goes through the point (6,-2)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!