A multiple choice test contains 10 questions with 5 answer choices. What is the probability of correctly answering 5 questions if you guess randomly on each question?

Answers

Answer 1

Answer:

25%

Step-by-step explanation:

So first, 5 answers is 50% of 10 questions

Then, if these problems have only 2 choices then 50%/2=25%


Related Questions

Felix invested $10,000 into a retirement account in 2010. He then projected the amount of money that would be in the account for several years assuming that the interest will compound continuously at an annual rate. Later, when he looked back at the data, he could not recall the annual he used for the projections. Use the data below to determine the annual rate as a percent. (Remember use A=Pert for continuous interest problems where P=initial amount invested, r is the interest rate as a decimal and t is the time in years).

Answers

Answer:

0.068% or 6.8% this will be your final answer

Frank's paper airplane glided 78.9 m. Sarah's plane glided 85 m. How many more centimeters did Sarah's plane glide? 1 m= 100 cm

Answers

Answer:

610 cm

Step-by-step explanation:

78.9 x 100 = 7890 cm  85 x 100 = 8,500 cm        

8,500 - 7890 = 610 cm

8.88 = 4.44(x-7)

Solve for x

Show or explain your method

Answers

Answer:

x=9

Step-by-step explanation:

8.88=4.44x-31.088.88-4.44x=-31.08-4.44x=-31.08-8.88-4.44x=-39.96x=9(we divided both rquations by -4.44)

what percent is 25 is 4 plz help

Answers

Answer: 16%

Step-by-step explanation:

4:25*100 =  

(4*100):25 =  

400:25 = 16

A small box can hold 5 chocolates and a big box can hold 12 chocolates. A factory produces 600 chocolates and packs them into boxes.

A. Write and equation to describe the situation.

B. If the factory owner uses 40 big boxes, how many small boxes does he use?

Answers

Answer:

Answer to B - 20

480 + 96 = 600

Step-by-step explanation:

12 x 40 = 480

5 x 4 = 20

Stella has 2 yards of fabric. She plans to cut the fabric into pieces that are 1/3 yard long. How many pieces will Stella have?

Answers

Answer:

6

Step-by-step explanation:

what is the rate of change of y=3/2 x

Answers

Answer:

3/2

Step-by-step explanation:

rate of change (m) can be found in the equation, y= mx+b

So, the rate of change is 3/2

The maximum walking speed S, in feet per second of an animal can be modeled by the equation S= √gL , where g=32ft/sec

Answers

Answer:

1.41

Step-by-step explanation:

The maximum walking speed S, in feet per second, of an animal can be modeled by the equation S= √(gL), where g = 32ft/sec² and L is the length, in feet, of the animal's leg. To the nearest hundredth, how many times greater is the maximum walking speed of a giraffe with a leg of 6 feet than a hippopotamus with a leg of 3 feet?

Step 1: Calculate the maximum walking speed of a giraffe

The leg of a giraffe measures L = 6 ft.

Sg= √(g × Lg)

Sg= √(32 ft/s² × 6 ft) = 13.86 ft/s

Step 2: Calculate the maximum walking speed of a hippopotamus

The leg of a hippopotamus measures L = 3 ft.

Sh= √(g × Lh)

Sh= √(32 ft/s² × 3 ft) = 9.80 ft/s

Step 3: Determine how many times greater is the maximum walking speed of a giraffe than a hippopotamus

We will make the ratio Sg/Sh

Sg/Sh = (13.86 ft/s)/(9.80 ft/s) = 1.41

The maximum walking speed of a giraffe is 1.41 times greater than the maximum walking speed of a hippopotamus.

What is the ratio?

It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.

The leg of a giraffe measures L = 6 ft.

S(g)= √(g×L)

S(g) = √(32 ft/s² × 6 ft)

S(g) = 13.86 ft/s

The maximum walking speed of a hippopotamus:

The leg of a hippopotamus measures L = 3 ft.

S(h)= √(g×L)

S(h) = √(32 ft/s² × 3 ft)

S(h) = 9.80 ft/s

The ratio S(g) to S(h)

S(g)/S(h) = 13.86/9.80 = 1.41

S(g) = 1.41S(h)

Thus, the maximum walking speed of a giraffe is 1.41 times greater than the maximum walking speed of a hippopotamus.

Learn more about the ratio here:

brainly.com/question/13419413

#SPJ5

Each year, roughly 10^6 computer programmers each make about $ 10^5.
How much money is this all together? Express your answer both as a power
of 10 and as a dollar amount.

Answers

$10^11 all you do is add the exponents together.

When carlos had one dog, he needed to serve 1/3 can of dog food\ each day, he adopted another dog and now he needs to serve a total of 5/6 can of dog food each day, how much extra does he have to feed his dogs now

Answers

Answer:

an extra 1/2 can

Step-by-step explanation:

if you change 1/3 into 2/6, you can see that he originally fed 2/6 of a can and now feeds 5/6 meaning that not he feeds an extra 3/6 which simplifies into 1/2

PLESE HELP ME! WILL GIVE BRAINLIEST!
Find the area of the shaded regions.

Answers

Answer:

[tex]A=41.86 cm^{2}[/tex]

Step-by-step explanation:

The area of the shaded regions= [tex]\frac{0}{360}* \pi [(4)^{2}-(3)^{2}][/tex]

[tex]=\frac{120}{360} *3.14*(10)(4)\\[/tex]

[tex]=\frac{3.14*10*4}{3}[/tex]

[tex]A=41.86 cm^{2}[/tex]

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

hope it helps...

have a great day!!

Please answer im wasting pointss!!!!

Answers

Answer:

bfcfbdgbcbcvgb

Step-by-step explanation:

What is the probability of randomly selecting an odd number from the numbers 1-11?

Answers

Answer:

6 out of 11 is the probability of choosing a odd number

Step-by-step explanation:

At the beginning of the year mrs Kerry gave each student in her class a new pencil with welcome to 4th grade written on it A month later the class measured their pencils to the nearest 1/8

Answers

i’m confused lol just like the person above

What is 28/20 simplified? And what is 20/28 simplified

Answers

Answer:

Step-by-step explanation:

What is 28/20 Simplified? -

7/5 is the simplified fraction for 28/20.

5/7 is the simplified fraction for 20/28

Answer:

28/20 would be 14/10 which would be 1 and 4/10.

20/28 would be 10/14 which would be 5/7

Step-by-step explanation:

you just cut it in half until you can't anymore.

what is the approximate radius of the bowl shown that is shaped as a hemisphere

Answers

Answer:

Approximate radius of the given hemisphere is 3 in.

Step-by-step explanation:

Formula to calculate the volume of a hemisphere is given by,

V = [tex]\frac{2}{3}\pi r^{3}[/tex]

Since, volume of the given hemisphere in the picture = 56.52 in²

By substituting the value of V in the formula,

56.52 = [tex]\frac{2}{3}\pi r^{3}[/tex]

Now solve the expression for the value of 'r',

r³ = [tex]\frac{3}{2\pi }(56.52)[/tex]

r³ = 26.99

r = ∛(26.99)

r = 3 in.

Therefore, approximate radius of the given hemisphere is 3 in.

What is the expression -7x2 + 32x + 240 in factored form?

Answers

Answer:

I believe the answer is -1 (7x-60)(x+4)

-0.85 - (-¼) + 0.4 + (-⅖) ?
what is the value of the expression?

Answers

Answer: =−3/5

Step-by-step explanation: Hope this help :D

5. Class 7887 has 2:7 math classes daily. How many math classes do they have
after 21 days? |

PLEASE DONT POST ANY LINKS WRITE ANSWER BELOW

Answers

Answer:

56.7

Step-by-step explanation:

2.7 x 21 = 56.7

simplify the following. ​

Answers

Answer:

19 /64

Step-by-step explanation:

Multiply whole numbers to get rid of the fractions

Then cancel the common factor.

What is the volume of the prism given below?
H: 8
W:15
L:10

Answers

Answer: 1200 units cubed

Step-by-step explanation:

Formula = H * W * L

8 * 15 * 10 = 8 * 150 = 1200

Answer:600 units squared :))

Step-by-step explanation:

please please help me!!!

Answers

Answer:

obtuse isosceles

hope it helps

Help me please. :) :) :)

Answers

Answer:

c

Step-by-step explanation:

c is the right one

Find the Area. (number only)
in

Answers

91 inches
Explanation: multiply 7 and 11 to get 77
Then, find the area of the triangle to get 14
Add those together to get 91

What is the percent change of 7 increased to 21

Answers

Answer:

300%

Step-by-step explanation:

21/7=3 This means that 21 is 3 times more than 7.

Arrange the numbers in increasing order. -3, +8, -4, +1, -7

Answers

Answer:

-7,-4,-3,+1,+8

Step-by-step explanation:

The bigger the negative number, the less it's worth

Answer:

-7, -4, -3, +1, +8

Step-by-step explanation:

when it comes to negative numbers the larger number is less than the lower number

uh can someone help me with this please I'm confused ughhh I missed school for two weeks and dk how to do this​

Answers

Answer:

35

Step-by-step explanation:

Top box equals 10

(5x2)

Middle box equals 15

(5-2+2) x 3

Bottom box equals 10

(5x2)

Answer:

35 in sq.

Step-by-step explanation:

Find the area of each rectangle and add them together.

Area of a rectangle = length*height

Top rectangle: This one is easy. Length=2 Width=5

5*2=10

Middle rectangle: There's a missing segment in the width but we can find it. Notice the bottom rectangle's width includes the missing segment + 2 (look at the top rectangle). 5-2 is 3. Add the 2 of the known segment to the 3 of the previously unknown segment.

Length=3 Width=5

5*3=15

Bottom rectangle: This one is also easy. Length=2 Width=5

2*5=10

10+15+10=35 in sq.

Evaluate 3xy + b if x = -4 ,y = 2 , and b = 5

Answers

Answer:

-19

Step-by-step explanation:

ok so since they give you all the variables you can substitute their values

for example instead of 3xy you can write 3*(-4)y

so that is the basic idea for this problem

after substituting, the new equation is 3*(-4)*2 +5

i plan on using order of operations, or PEMDAS

3*(-4)=(-12)

(-12)*2=(-24)

-24+5=-19

so the answer is -19

hope this helps!

A textbook store sold a combined total of 447 sociology and psychology textbooks in a week. The number of psychology textbooks sold were 43 less than the number of sociology textbooks sold. How many textbooks of each type were sold

Answers

Answer:

404

Step-by-step explanation:

since the triangle is
a.right
b.isosceles
c.equilateral​

Answers

Step-by-step explanation:

plz write full question

Answer:

I need a more information

Step-by-step explanation:

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