A student takes a multiple-choice test with 8 questions on it, each of which have 4 choices. The student randomly guesses an answer to each question.

What is the probability that the student gets exactly 4 questions correct?

Round to 3 decimal places.
0.087
0.208
0.886
0.973

Answers

Answer 1

Answer:

The correct answer is 0.087

Step-by-step explanation:

Got it right on Edge assignment


Related Questions

please answer below :-)

Answers

Answer:

Ur answer is B!!!

Step-by-step explanation:

I have no time to explain but trust me ive had this question

Oh the answer would be letter choice B,

i need this done rn plz help

Answers

Answer:

answer for yes total, is 5, the answer for no total is 20, the total for junior is 17, and the total for senior is 8.

Step-by-step explanation:

What you do is you add the 2 values. for example, to find the total for the juniors, you would add 1 to 16.

plz help i will give brainliest

Answers

Answer:

x = 5

Step-by-step explanation:

If you have 19x, 7x, and 10x, they all have to be multiplied to equal 180 and be a real triangle. When all multiplied by 5, you can add up and it will equal 180.

NEED HELP ASAP
THIS IS DUE TODAY

Answers

The correct answer is $

Which object has a capacity that is best measured in pints

1.swimming pool
2. Water Bottle
3. Soup Spoon
4.Trash Barrel
HURRY PLZ I WILL GIVE U BRAINLEST

Answers

Trash barrel bc it makes sense

HELP DUE IN 15 MINS!

x =??

Answers

Answer:

x = 32

Step-by-step explanation:

Using the Secant and Tangent Intersection Theorem we can say;

(x + 18) (18) = 30²

18x + 324 = 900

18x = 576

x = 32

Hope this helps!

x=32

have a great day

Can one of you lovely people help me please ?

Answers

Answer:

the answer is

C. = x=22.82

22.82! Is the correct answer

The length of the base of a scalene triangle is 22 meters and the height is 14 meters. Find the area of the scalene triangle

Answers

Answer:

Area is 154 square meters

Step-by-step explanation:

Well lets think about this

If I take a rectangle and cut it into half diagonally I would get 2 triangles right?

So if I have 2 triangles of the same height and base I can make a rectangle

to find the area of a rectangle I do length times width

So lets take our scalene triangle and multiply our base with its width and then divide by 2

22*14 = 308

308/2 is 154

HELP ME PLEASE!. 20 points!

Answers

Answer:

Part 1: She will make $1,944.00 In 4 days.

Part 2: 0.38

help this is hard for me lol

Answers

i have no idea what the answer is

What is the slope of line 3x - y = 18

Answers

Answer:

ok do 3 times whatever to make 18 so the answer is probly 6y

Step-by-step explanation:

Calculate (1.6) · (0.215). Show your reasoning.​

Answers

Answer:

0.344

Step-by-step explanation:

i cant show reasoning its just 1.6 times 0.215

Help me solve this problem for a hug





Answers

Answer:

4

4in

Step-by-step explanation:

what grade lvl is this???

Have a nice day! :-)

Find an equivalent expression for parts (a) and (b).
a. 2x + 10x

b. 2(x – 4) + x

DO NOT GIVE ME A LINK TO THE ANSWER

Answers

Answer:

Step-by-step explanation:

a) 8x + 4x

b) 3x -8

if tanθcscθ = 3, find the value of cosθ

Answers

Answer:

1.5

Step-by-step explanation:

[tex]\huge{ \mathfrak{  \underline{ Answer }\:  \:  ✓ }}[/tex]

Let's Solve :

[tex] \tan( \theta) \csc(\theta) = 3[/tex]

[tex] \dfrac{ \sin(\theta) }{ \cos(\theta) } \times \dfrac{1}{ \sin(\theta) } = 3[/tex]

[tex] \dfrac{1}{ \cos( \theta) } = 3[/tex]

[tex] \cos(\theta) = \dfrac{1}{3} [/tex]

_____________________________

[tex]\mathrm{ \#TeeNForeveR}[/tex]

solve for p
p+23.7=41.13

Answers

Answer:

p=17.43

Step-by-step explanation:

To solve this I just subtracted

p=41.13-23.7

which is

p=17.43

What is the correct answer?

Answers

Green 36 because you set 2x-8 = 64 and solve by adding 8 to both sides and getting 72 and dividing that by 2 which is 36

2
2. This system of equations has : y = -2x
y = -2x + 1
A. One Solution
B. Infinitely Many Solutions
C. No Solutions

Answers

Answer:

C.  no solutions

Step-by-step explanation:

Both equations have a slope of -2, but have different y-intercepts.  Therefore, the graphs of the equations are parallel, but don't coincide, nor do they intersect.  So, there are no solutions

Solve: 2x - 3y = 9 and x + 2y = 1​

Answers

Answer:

(3, - 1 )

Step-by-step explanation:

Given the 2 equations

2x - 3y = 9 → (1)

x + 2y = 1 → (2)

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

x = 1 - 2y → (3)

Substitute x = 1 - 2y into (1)

2(1 - 2y) - 3y = 9

2 - 4y - 3y = 9

- 7y + 2 = 9 ( subtract 2 from both sides )

- 7y = 7 ( divide both sides by - 7 )

y = - 1

Substitute y = - 1 into (3) for corresponding value of x

x = 1 - 2(- 1) = 1 + 2 = 3

solution is (3, - 1 )

Johnson Construction Company is going to build a house on a concrete slab. The slab is to have dimensions 30 feet by 20 feet by 2 feet. How many cubic feet of concrete should the construction company order

Answers

Answer:

1200ft^3

Step-by-step explanation:

30 x 20 x 2= 1200^3

PLEASE HELP!!

The Extreme Rock Climbing Club planned a climbing expedition. The total cost was $3200, which was to be divided equally among the members going. Prior to the trip,10 members decided not to go. If the cost per person increased by $160, how many people went on the expedition?

Answers

Answer:

x = 25.

Step-by-step explanation:

Original cost per person:: 2000/x

Changed cost per person:: 2000/(x-5)

---------------------------

Equation:: changed - original = 20

2000/(x-5) - 2000/x = 20

2000x - 2000x + 2000*5 = 20x(x-5)

10000 = 20x^2-100

 

----

500 = x^2 - 5x

------------------

x^2 - 5x - 500 = 0

(x+20)*(x-25) = 0

-----

Only positive root makes sense ====> x = 25.

Charlie is flying a kite one afternoon and steps on the end of the string to have his
hands free to take a picture. The string is 135 feet long and forms a 68-degree angle
with the ground. How high is his kite at this time? Round to the nearest foot, and
enter the number only.

Answers

Answer:

roubd it to 20 and you will get 679.90

PLEASE HELP 35 POINTS
Find the value of x in the triangle shown below.

Answers

Answer:

B sqrt(17)

Step-by-step explanation:

Using pythagoras theorem

A.) Kokochi walks 4 and 1 twelfth miles in one day. He walks the same distance for one week. How many miles does Kokochi walk?

B.) The next week, Kokochi walks 8 and 1 fourth miles in one day for a week. How many miles does Kokochi walk?

C.) What is the distance Kokochi walked if the answers to part A and B were combined?

Answers

Answer:

A) 28 7/12, or 343/12, or 28.583

B) 57.75

C) 86.3 or 86 1/3

Step-by-step explanation:

3,-5 reflection over the x-axis

Answers

Answer:

It would be (3,5)

Step-by-step explanation:

hope this helps

Macy took a Math test; her ratio of the correct to incorrect answers was 8:2.
If there were 30 questions on the test, how many did Macy get correct?



FAST RESPONSE PLEASE!!!!

Answers

Answer:

24

Step-by-step explanation:

8 correct for every 2 wrong

multiply both sides by 3

24 correct and 6 wrong

which adds up to 30

The population of a swarm of killer bees multiplies

10 fold in 50 days. Determine the correct

expression to calculate the number of bees after t

days if the initial swarm had 1000 bees.

Answers

Answer:

The correct  expression to calculate the number of bees after t  days if the initial swarm had 1000 bees is [tex]P = 1000 *e^{0.2*t}[/tex]

Step-by-step explanation:

Given -

The population of a swarm of killer bees increases by 10 times in 50 days

The rate of increase of population is [tex]r = \frac{10}{50} = 0.2[/tex] per day

As we now the equation of population projection is

[tex]P= P_0 *e^{rt}\\[/tex]

Where P0 = initial population

P is the population after time t

and r is the rate of increase of population

Substituting the given values in above equation, we get -

[tex]P = 1000 *e^{0.2*t}[/tex]

Suppose that a new employee starts working at ​$7.72 per hour and receives a 5​% raise each year. After time​ t, in​ years, his hourly wage is given by the equation y=$7.72(1.05)t. Find the amount of time after which he will be earning​ $10.00 per hour.

After what amount of time will the employee be earning​ $10.00 per​ hour?

Answers

Answer:

substitute 10 for y (y=10) and solve for t

2.17

Step-by-step explanation:

I think the equation is written wrong because assuming that his wage increases at the end of each year, the beginning of the first year wages should be 7.72, not 0.

recommended correction

y=7.72 + (1.05)t


A 6 kg rock is dropped off a 10 m cliff and hits the ground with a velocity of 12.5 m/s. How much work is done by air resistance on the rock
a:119j
b:588j
c:100j
d:196j

Answers

196j is the answer to the problem

A parking space shaped like a parallelogram has a base of 19 feet and a height is 9 feet. A car parked in the space is 14 feet long and 6 feet wide. How much of the parking space is not covered by the car? The area of the parking space not covered by the car is

Answers

Answer:

87 feet^2

Step-by-step explanation:

area of the parking space not covered by the car = area of parking space - area covered by the car

area of parking space = area of a parallelogram = base x height = 19 x 9 = 171 feet²

Area of car = area of a rectangle = length x width 14 x 6 = 84 feet²

area of the parking space not covered by the car = 171 feet² - 84 feet² = 87 feet^2

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