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
xenn [34]
2 years ago
9

A set of cards contains the numbers 1 through 20. Mathieu chooses a card at random, records the number of the card, and then ret

urns the card to the set. He conducts 200 trials of this event. Based on the theoretical probability, how many times can Mathieu expect to choose a multiple of 5?
10
20
40
50
Mathematics
1 answer:
Vitek1552 [10]2 years ago
6 0

Answer:

20

Step-by-step explanation:

You might be interested in
A school district is considering moving the start of the school day at Groveland High from 8:00 a.m. to 9:00 a.m. to allow stude
DaniilM [7]

Answer:

The answer is "\bold{(7.1-8.3) \pm 1.665 \sqrt{\frac{(1.7)^2}{50}+\frac{(1.9)^2}{39}} }\\\\"

Step-by-step explanation:

Given values:

\bar{x_1}=7.1\\\\\bar{x_2}=8.3\\\\s_1=1.7\\\\s_2=1.9\\\\n_1=50\\\\n_2=39

Using formula:

\to (\bar{x_1} -\bar{x_2}) \pm t \sqrt{\frac{(s_1)^2}{n_1}+\frac{(s_1)^2}{n_2}} \\\\

Put the values in the above formula:

\to (7.1-8.3) \pm 1.665 \sqrt{\frac{(1.7)^2}{50}+\frac{(1.9)^2}{39}} \\\\

4 0
2 years ago
Which expression represents 4 less than twice a number, n?
andrew-mc [135]

Answer:

x = 2n - 4

Step-by-step explanation:

hope this helped have a great day

3 0
3 years ago
Read 2 more answers
If 32^2c = 8^c+7, what is the value of c?<br> 0 1<br> O2<br> O 3<br> 05
lidiya [134]
Answer:

32^ 2c=8^ c+7

C=3
8 0
2 years ago
Read 2 more answers
Im in need of help so please help[ :)))
const2013 [10]

Given:

Consider the pentagon MVEDR is dilated with the origin as the center of dilation using the rule (x,y)\to(\dfrac{2}{3}x,\dfrac{2}{3}y) to create pentagon M'V'E'D'R'.

To find:

The correct statement.

Solution:

If a figure dilated by factor k, then the rule of dilation is

(x,y)\to (kx,ky)

Here,

If k>1, then the image is larger than the original figure.

If k<1, then the image is smaller than the original figure.

We have,

(x,y)\to(\dfrac{2}{3}x,\dfrac{2}{3}y)

Here, M'V'E'D'R' is image and MVEDR is original figure. The scale factor is

k=\dfrac{2}{3}

Pentagon M'V'E'D'R' is smaller than pentagon MVEDR because the scale factor is less than 1.

Therefore, the correct option is B.

4 0
2 years ago
What is the total surface area of the square pyramid below?
AVprozaik [17]

Answer:

D

Step-by-step explanation:

380

3 0
3 years ago
Other questions:
  • A survey of 500 farmers showed that of the​ farmers, 121 grew only​ wheat, 108 grew only​ corn, 92 grew only​ oats, 195 grew​ wh
    10·1 answer
  • Estimate the maximum error made in approximating e^x by the polynomial 1 + x + {1}/{2}x^2 over the interval x of [-0.4,0.4].
    10·1 answer
  • If x, y, z, are integers such that 2^x*3^y*7*z=329, Then what is x, y, and z? PLZZZZ HELP THANK YOU
    15·1 answer
  • #1) What is the most efficient way to isolate and solve for the variable? *
    5·2 answers
  • Which addend is the same in these equations 1+2, 1+3, 1+4, 1+5, 1+6
    11·1 answer
  • Simplify 7(x + 3). xxxxxxxxxxx
    11·2 answers
  • The formula for the circumference of a circle is C = 2πr, where r is the radius. Rearrange the formula to solve for r and select
    6·1 answer
  • Consider the events A and B, where P(A') = 3/5 and P(B) = 3/4 and P(A U B) = 7/8.
    14·1 answer
  • Solve for x, the triangles are similar
    14·1 answer
  • Can someone help me??
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!