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
oksano4ka [1.4K]
3 years ago
12

Britney practiced the piano a total of 7 hours this week. This is 3 hours less than she practiced last week. Select the correct

labels to complete the bar diagram that is used to find the number of hours w britney practiced last week?

Mathematics
1 answer:
ad-work [718]3 years ago
4 0
Ok so I’ll give you the answer but I can’t see the box with the choices in it so she practiced 4hrs last week and I can’t see what else hopefully that helped :)
You might be interested in
At Munder Difflin Paper Company, the manager Mitchell Short randomly places golden sheets of paper inside of 30% of their paper
Korvikt [17]

Answer:

90.67% probability that John finds less than 7 golden sheets of paper

Step-by-step explanation:

For each container, there are only two possible outcomes. Either it contains a golden sheet of paper, or it does not. The probability of a container containing a golden sheet of paper is independent of other containers. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

At Munder Difflin Paper Company, the manager Mitchell Short randomly places golden sheets of paper inside of 30% of their paper containers.

This means that p = 0.3

14 of these containers of paper.

This means that n = 14

What is the probability that John finds less than 7 golden sheets of paper?

P(X < 7) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) + P(X = 6)

In which

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{14,0}.(0.3)^{0}.(0.7)^{14} = 0.0068

P(X = 1) = C_{14,1}.(0.3)^{1}.(0.7)^{13} = 0.0407

P(X = 2) = C_{14,2}.(0.3)^{2}.(0.7)^{12} = 0.1134

P(X = 3) = C_{14,3}.(0.3)^{3}.(0.7)^{11} = 0.1943

P(X = 4) = C_{14,4}.(0.3)^{4}.(0.7)^{10} = 0.2290

P(X = 5) = C_{14,5}.(0.3)^{5}.(0.7)^{9} = 0.1963

P(X = 6) = C_{14,6}.(0.3)^{6}.(0.7)^{8} = 0.1262

P(X < 7) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) + P(X = 6) = 0.0068 + 0.0407 + 0.1134 + 0.1943 + 0.2290 + 0.1963 + 0.1262 = 0.9067

90.67% probability that John finds less than 7 golden sheets of paper

7 0
3 years ago
1. Calculate the simple interest over an amount of N$ 2500 that is invested for 3 years and 6 months at a rate of 7% pa.​
Umnica [9.8K]

Answer:

N$  612.5

Step by step explaination:

Given,

Principal or'P'=N$2500

Time or'n'=3 years & 6 months or 3.5 years

Rate of profit or 'r'=7% or 7/100

Profit or 'I'=?

_____________________________________

We know,

I=P*n*r

I=2500*3.5*7/100

I=612.5

So,simple interest is N$  612.5.

3 0
4 years ago
I need help please! this is on EDGE2020 !
Margaret [11]

Answer:

D

Step-by-step explanation

A. there are 6 triangles so not this

B. Only 2 rectangles

C. 6 triangles once again

D. everything matches

5 0
3 years ago
Read 2 more answers
Round 34,527 to the nearest ten-thousand
photoshop1234 [79]

Answer:

If you round it to the nearest ten-thousand, your answer would be 30,000.

6 0
3 years ago
Read 2 more answers
What does x equal in 5-4(-x-3/2)5(-6x-6/5)+10x
kondaur [170]

Answer:

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • PLEASE HELPPPPPPPPPP<br> solve for a<br> b=Da+fa
    8·1 answer
  • What is number 3 and 4
    5·1 answer
  • If I have 309 ÷98 and you have to do long math how would you solve that?
    6·1 answer
  • What does it equal 5/12 + 1\4
    8·2 answers
  • MONEY the wayside hotel charges its guest $1 plus $0.80 per minute for long distance calls. Across the street, blue sky hotel ch
    13·1 answer
  • What is the result when 6x3 + 25x2 + 20x + 4 is divided by 3x + 2?
    5·1 answer
  • Plsase help meeeeeee​
    11·1 answer
  • Given that f(x)=2x/3 evaluate f^-1(6)
    14·1 answer
  • What is the area of triangles in square yards
    5·1 answer
  • Please help me with this question.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!