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
photoshop1234 [79]
3 years ago
5

Please Answer And Show work please!!!!!

Mathematics
2 answers:
Murljashka [212]3 years ago
8 0

Answer:

si lan varlgo 2x4x4x2.5

Step-by-step explanation:

la nidra si margo

alukav5142 [94]3 years ago
7 0

Answer:

2x4x4x2.5

Step-by-step explanation:

You might be interested in
N- 6< -12 answer in mathematics
Stolb23 [73]
N - 6 < -12
   +6    +6
N <- 6
5 0
3 years ago
Polynomial are closed under multiplication. What does that mean?
Y_Kistochka [10]

Answer:

look this link up

https://mathbitsnotebook.com/Algebra1

3 0
3 years ago
A room in the shape of a rectangular prism measures 15 feet by x feet by 12 feet. Write a simplified expression for the volume (
zloy xaker [14]
180x feet^3

this is the answer because volume is lwh so 15 x 12 x x is 180x the labeled is 180x ft.^3
5 0
3 years ago
Read 2 more answers
A manufacturer of Christmas light bulbs knows that 10% of these bulbs are defective. It is known that light bulbs are defective
Inessa05 [86]

Answer:

(a) P(X \leq 20) = 0.9319

(b) Expected number of defective light bulbs = 15

Step-by-step explanation:

We are given that a manufacturer of Christmas light bulbs knows that 10% of these bulbs are defective. It is known that light bulbs are defective independently. A box of 150 bulbs is selected at random.

Firstly, the above situation can be represented through binomial distribution, i.e.;

P(X=r) = \binom{n}{r} p^{r} (1-p)^{2} ;x=0,1,2,3,....

where, n = number of samples taken = 150

            r = number of success

           p = probability of success which in our question is % of bulbs that

                  are defective, i.e. 10%

<em>Now, we can't calculate the required probability using binomial distribution because here n is very large(n > 30), so we will convert this distribution into normal distribution using continuity correction.</em>

So, Let X = No. of defective bulbs in a box

<u>Mean of X</u>, \mu = n \times p = 150 \times 0.10 = 15

<u>Standard deviation of X</u>, \sigma = \sqrt{np(1-p)} = \sqrt{150 \times 0.10 \times (1-0.10)} = 3.7

So, X ~ N(\mu = 15, \sigma^{2} = 3.7^{2})

Now, the z score probability distribution is given by;

                Z = \frac{X-\mu}{\sigma} ~ N(0,1)

(a) Probability that this box will contain at most 20 defective light bulbs is given by = P(X \leq 20) = P(X < 20.5)  ---- using continuity correction

    P(X < 20.5) = P( \frac{X-\mu}{\sigma} < \frac{20.5-15}{3.7} ) = P(Z < 1.49) = 0.9319

(b) Expected number of defective light bulbs found in such boxes, on average is given by = E(X) = n \times p = 150 \times 0.10 = 15.

                                           

5 0
3 years ago
Is -32 an irrational number
dybincka [34]
Answer:
The answer is nope
8 0
2 years ago
Read 2 more answers
Other questions:
  • Use the graph to find the slope. What is the runners speed?
    12·1 answer
  • A store offers 3 for the price of 2. What is the implied discount?
    7·2 answers
  • Simplify the following expression below:
    12·1 answer
  • Which equation has x = -2 as the solution?
    7·2 answers
  • Which of the following rules represents a dilation? A. (x, y) → (x − 3, y + 5) A. , (x, y) → (x − 3, y + 5) , B. (x, y) → (−y, x
    6·1 answer
  • What number is twice the product of its two digits
    5·2 answers
  • Daphne has a preloaded games card that she is using to play games at the arcade as shown in the table.
    15·1 answer
  • Please does anyone know the correct answer choice for this question!!!????
    13·2 answers
  • Which best describes the equation that the graph represents?
    12·1 answer
  • Pedro is supposed to practice piano for 4/6 an hour every day. Today, he has practiced for 2/6 of an hour.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!