If there are 19 questions and each question has 4 answers, what is the probability she will answer at least one question correctly?

Answers

Answer 1

Answer:

0.9958

Step-by-step explanation:

P(being correct) = 1/4 = 0.25

Hence, p = 0.25

n = 19

P(x ≥ 1) = p(x = 1) + p(x = 2) +... + p(x = 19)

Using the binomial probability formula :

P(x =x) = nCx * p^x * (1 - p)^(n - x)

However, to save computation time, we could use a calculator :

Using a calculator,

P(x ≥ 1) = 0.99577

P(x ≥ 1) = 0.9958


Related Questions

Find the sum of 6x2 – 1 and x + 9.

Answers

Please find the attached photograph for your answer.

First correct answer gets brainliest! All guesses will be reported. Tysm!!

Answers

Answer:

90 in

Step-by-step explanation:

360/60 = 6

15*6 = 90

What is the radius of a sphere with a surface area of 314.2 square inches?
Use 3.14 for pi and round to the nearest whole number.

Answers

Use this link to find your answerhttp://ldh.la.gov/

Which answer is correct??

Answers

Answer:

8

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

y

2

−3=1

1

2

y+−3=1

1

2

y−3=1

Step 2: Add 3 to both sides.

1

2

y−3+3=1+3

1

2

y=4

Step 3: Multiply both sides by 2.

2*(

1

2

y)=(2)*(4)

y=8

Answer:

C.

Step-by-step explanation:

Replace y with each value.

If y is 2 then the answer would be -2

If y is 4 then the answer would be -1

If y is 8:

8/2 = 4

4-3 = 1

Please mark brainliest if this answer helped.

Happy Learning!

A Bag contains 3 green marbles, 7 white marbles, and red marbles (and no other marbles). One marble is chosen without
looking
Pia P (not green)
Find the COMPLEMENT of P.

Answers

Answer:

what is the multiple choice

Step-by-step explanation:

Answer:

A White Marble

Step-by-step explanation:

The chance of choosing a white marble is 7/12 (amount of red marbles = 2 because there is no exact number, the problem only states there are more than one marble. To find probability, add all of the possible changes combinations of choosing a marble from the bag. ( 3 + 7 + 2 = twelve. After finding how many possible combinations there are, subtract the # of possible combinations from the # of marbles that are not white. ( 12 - 5 = 7 ). Finally, put the amour of white marbles next to the # of possible combinations. (7/12)

Find the volume of the cylinder. Round your answer to the nearest tenth.
12 in.
10 in.

Answers

Answer: this is your answer 4523.9

Step-by-step explanation:

“Solve the system of equations using the substitution method. Show your work and be sure to include the solution to the system.” Help pls !

Answers

2x+x-1=8
x=3
y=3-1
y=2
the answer is (3,2)
hope this helps!!


The sum of three consecutive odd integers is 189. What
are the integers?

Answers

Answer:

61, 63, 65

Step-by-step explanation:

n + n+2 + n+4 = 189

3n = 183

n = 61

Answer:

The three consecutive odd integers are 61, 63, and 65

Step-by-step explanation:

Let the three consecutive odd integers be:

n + 1, n + 3 and n + 5

Therefore:

n + 1 + n + 3 + n + 5 = 189

3n + 9 = 189

3n = 180

n = 60

n + 1 = 61

n + 3 = 63

n + 5 = 65

In slope intercept y=mx+b if the slope is 3/4 and the -y intercept is -2

Answers

Answer:

y = [tex]\frac{3}{4}[/tex] x - 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + b ( m is the slope and b the y- intercept )

Here m = [tex]\frac{3}{4}[/tex] and b = - 2 , then

y = [tex]\frac{3}{4}[/tex] x - 2 ← equation of line

0.45 divided 36
how would I divide this?

Answers

Answer:

16.2 is your answer..

Step-by-step explanation:

36/0.45

=36*45/100

=1620/100

=162/10

=16.2

Hope it will helps you to understand

Use Photo Math it should help you step-by-step it no video or anything all you have to do is take a picture and it show you how it got it-

what is 8 1/2 as a decimal​

Answers

8.5 is the answer for your question

Answer:

8.5

Step-by-step explanation:

8 and 1/2 is 8 and one half, or 0.5

so it is 8.5

A law firm is going to designate associates and partners to a big new case. The daily rate charged to the client for each associate is $700 and the daily rate for each partner is $1700. The law firm assigned 4 more partners than associates to the case and was able to charge the client $21200 per day for these lawyers' services. Write a system of equations that could be used to determine the number of associates assigned to the case and the number of partners assigned to the case. Define the variables that you use to write the system

Answers

the sun is one hundred and fifty million kilometers away from the earth write this as an ordinary whole number

Finding X in triangle

Answers

Answer:

x is 5 cm as the entire base is 10 cm, so 10/2 = 5

Can someone help me please ? :)

Answers

Answer:

(4, 3 ) and (1.5, 8 )

Step-by-step explanation:

Given the 2 equations

2x + y = 11 → (1)

xy = 12 → (2)

Rearrange (1) expressing y in terms of x by subtracting 2x from both sides.

y = 11 - 2x → (3)

Substitute y = 11 - 2x into (2

x(11 - 2x) = 12 , that is

11x - 2x² = 12 ( subtract 12 from both sides )

11x - 2x² - 12 = 0

2x² - 11x + 12 = 0 ← in standard form

(x - 4)(2x - 3) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 4 = 0 ⇒ x = 4

2x - 3 = 0 ⇒ 2x = 3 ⇒ x = 1.5

Substitute these values into (3) for corresponding values of y

x = 4 : y = 11 - 2(4) = 11 - 8 = 3 ⇒ (4, 3 )

x = 1.5 : y = 11 - 2(1.5) = 11 - 3 = 8 ⇒ (1.5, 8 )

how do i get the answer and what is the answer? im looking for a right answer not just someone who types in the mayo mayo

Answers

Answer:

x = 51°

Step-by-step explanation:

The straight line segment has a total angle of 180°. Therefore, to find the angle inside the triangle that is next to 94°, subtract 94 from 180:

180° - 94° = 86°

That angle is almost a right angle but not quite. Now, to find x, add up the two angles inside the triangle and subtract it from 180°:

43° + 86° = 129°

180° - 129° = 51°

Kieth has landscaping bricks that are 0.75 feet long. Kieth puts 19 bricks end to end along a sidewalk. What is the total length of all thee red bricks he uses. Enter your answer in the box

Answers

Answer: 14.25 ft

Step-by-step explanation:

Assuming all the bricks used are red:

Keith puts 19 bricks end to end along a sidewalk and each one of those bricks is 0.75 ft long.

When put end to end therefore, the total length will be that length multiplied by the number of bricks laid:

Total length = Number of bricks laid * Length of each brick

= 19 * 0.75

= 14.25 ft

If you think of the equation as an equation for a line.

=+
y
=
m
x
+
b

where

=5/9(−32)
C
=
5
/
9
(
F

32
)

or

=5/9−5/9(32)
C
=
5
/
9
F

5
/
9
(
32
)

you can see the slope of the graph is 5/9
5
/
9
, which means that for an increase of 1 degree Fahrenheit, the increase is 5/9
5
/
9
of 1 degree Celsius. Therefore, statement I is true.

This is the equivalent to saying that an increase of 1 degree Celsius is equal to an increase of 9/5
9
/
5
degrees Fahrenheit. Since 95
9
5
= 1.8, statement II is true.

On the other hand, statement III is not true, since a temperature increase of 9/5
9
/
5
degrees Fahrenheit, not 5/9
5
/
9
degree Fahrenheit, is equal to a temperature increase of 1 degree Celsius.

The final answer is D.

Answers

Answer:

The answer is D.

Step-by-step explanation:

May be confusing.

Answer:

why are you giving out answers as a question

Step-by-step explanation:

At Kolbens Building, 3 out of every 7 employees use public transportation. There are 9,800 employees at the building. How many use public transportation?

I really need help on this

Answers

Answer:

I think the answer is 4800.

Step-by-step explanation:

Usually people would use 1/10 or anything like that, but here 3/7 was used. in order to find 10 percent you would divide by 10, correct, well I did the same with 7. (because you must find 1/7) The question was 3/7, so I multiplied 1400 by 3, and my answer was 4800. (sorry if this wasn't understandable, im the the best at explaining things)

Please help I’ll mark brainliest

Answers

Answer:

y= x-3

Step-by-step explanation:

use the slope formula which is y= m(slope)x + b(y intercept)

The slope is one, so you can just leave it as x, and the y intercept is -3 so you can plus that into the b.

Hope this helps :)


Find the volume of the cone.

Answers

Please mark me brainliest!!!!
It’s C

Hope this helps!
The answer to you your question is C.

BRAINLISRST AND EXTRA POINTS I NEEDS I HELP

A study found that a car
depreciates 12% per year. If the
car was purchased for $15,000, how
much is it worth after 4 years?

Answers

Answer:

7800

Step-by-step explanation: :)

Here it is please make sure it’s right

Answers

Answer:

C. Car B travels 11 miles more

What is the measure of angle x?

A 44°

B 53°

C 83°

D 180°

Answers

Answer:

the correct answer is D (what a drag)

What does civic participation include? Check all that apply. cleaning up street litter helping neighbors in trouble paying all taxes on time helping communities in trouble testifying as a witness in court

Answers

Answer:

i think it is 1,2,3

Step-by-step explanation:

sorry if im wrong :(

Answer:

ABC

Step-by-step explanation:

edge 2021

please correct me if wrong

Which shows the measures in ascending order for the data below?

14, 18, 11, 11, 15, 18, 11, 12, 15

range, mode, mean, median
range, mean, median, mode
range, median, mode, mean
range, mode, median, mean

Answers

Step-by-step explanation:

range, mode, median, mean

Answer:

range, mode, mean, median

Step-by-step explanation:

I just did it on odyssey

Help me pless!!!!!!!!!

Answers

Answer:

p = 7

Step-by-step explanation:

2p = 14

p = 14/2

p = 7

What is the image of (-5,-6) after a reflection over the line y=−x?

Answers

Answer:

The image will be the point (6,5)

Step-by-step explanation:

Here, we want to get the image of the point (-5,-6) after the reflection

Mathematically if we reflected a point with the pre-image coordinates (x,y) over the line y = -x; its image becomes (-y, -x)

So, (-5,-6) becomes (6,5)

A conical termite mound has a height of 1.4m and a base of radius 60cm if there are three termites per cubic centimeter, how many termites inhabit the mound?

Answers

Answer:

1583362.7 termites

Step-by-step explanation:

A conical termite mound has a height of 1.4m and a base of radius 60cm if there are three termites per cubic centimeter, how many termites inhabit the mound

The formula for the volume of a cone

= πr²h/3

Radius = r = 60cm

Height = h = 1.4 m

Converting to centimeters.=

1m = 100cm

1.4m = x

x = 1.4 × 100cm = 140 cm

Volume of the cone = π × 60² × 140/3

527787.5658 cm³

From the above question

1cm³ = 3 termites

527787.5658 cm³ = x

Cross Multiply

x = 3 × 527787.5658

x = 1583362.6974 termites

Approximately.= 1583362.7 termites

Answer:A conical termite mound has a height of 1.4m and a base of radius 60cm if there are three termites per cubic centimeter, how many termites inhabit the mound

Step-by-step explanation:

what is the value of x? 26 degrees tangent lines

Answers

Answer:

154°

Step-by-step explanation:

The central angle and the angle between the tangents are supplementary, so

x + 26° = 180° ( subtract 26° from both sides )

26 - 26 = 0

180 - 26 = 154

x = 154°

The value of the x will be 154°.

How to find the interior central angle?

The central angle and the angle between the tangents are supplementary.

If there is a circle O with tangent line L intersecting the circle at point A, then the radius OA is perpendicular to line L.

So,

x + 26° = 180°

Subtract 26° from both sides;

x + 26 - 26 =  180 - 26

x = 154°

Hence, the value of the x will be 154°.

Learn more about tangents ;

https://brainly.com/question/10024457

#SPJ2

please help, dont answer if you dont know

Answers

Answer:

Step-by-step explanation:

A. 1/3

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