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
timama [110]
3 years ago
9

5x2^3 Please help!!!

Mathematics
1 answer:
HACTEHA [7]3 years ago
3 0
I believe the answer is 40
You might be interested in
Approximately 5% of calculators coming out of the production lines have a defect. Fifty calculators are randomly selected from t
baherus [9]

Answer:

0.2611 = 26.11% probability that exactly 2 calculators are defective.

Step-by-step explanation:

For each calculator, there are only two possible outcomes. Either it is defective, or it is not. The probability of a calculator being defective is independent of any other calculator, which means that the binomial probability distribution is used 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.

5% of calculators coming out of the production lines have a defect.

This means that p = 0.05

Fifty calculators are randomly selected from the production line and tested for defects.

This means that n = 50

What is the probability that exactly 2 calculators are defective?

This is P(X = 2). So

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

P(X = 2) = C_{50,2}.(0.05)^{2}.(0.95)^{48} = 0.2611

0.2611 = 26.11% probability that exactly 2 calculators are defective.

3 0
2 years ago
Is the graph increasing, decreasing, or constant where -3 < X <-1?
Romashka [77]

Answer:

decreasing

Step-by-step explanation:

since its negative it will slope down

8 0
3 years ago
8. Why is it NOT useful to view science as a set of facts?
WITCHER [35]
Answer:
(assuming this isn't actually for math?) but one reason is bc science shouldn't be always taken as fact. science can be wrong.

Explanation:
not all but many scientists are skeptical and won't accept anything without proof, and even when things are accepted as right they can still be wrong later. example: humans once believed the planets revolved around the earth and that the earth was flat (even, some people still believe the earth is flat today....) but both those things are generally unaccepted today.

science shouldn't be viewed as fact always, because accepting everything as fact will lead to misassumptions and false information. it's like we should never take things for granted
3 0
2 years ago
Read 2 more answers
Cual es la mediana de los datos en un estudio​
seraphim [82]

Answer:

La mediana de un conjunto de números es el número del medio del conjunto (después de que los números se hayan ordenado de menor a mayor).

Step-by-step explanation:

Digamos que tienes estos números, 4, 7, 2, 9, 7, 6 y 4. primero, los pones en orden de menor a mayor (2, 4, 4, 6, 7, 7, 9), y luego usted determina qué número está en el medio, que es 6.

3 0
3 years ago
Exponents and roots are what operations
dalvyx [7]

Answer:

An exponent

Step-by-step explanation: So if we have 83, we want to multiply three 8s, or 8 * 8 * 8. A root is basically the opposite. We're trying to find the number that we multiply by itself a certain number of times to get the number under the radical sign.

8 0
3 years ago
Other questions:
  • The length of line PQ is 7.5 inches. what is the absolute error of the measurement?
    13·1 answer
  • Simplify 4 radical 20- 3 radical 45
    15·1 answer
  • 3 over 18 as a percent please help
    8·2 answers
  • Jesse orders 9 cartons of grape juice boxes. There are 36 juice boxes in each carton. She also orders 5 cartons of apple juice b
    12·1 answer
  • Is the sequence geometric ? -48,96,-192,384...
    14·1 answer
  • I NEED SERIOUS HELP!!! <br> Find the volume of the rectangular prism <br> The volume is __cm. Cubed
    11·1 answer
  • 58+(x+9)+(2x-8)=90 what is the value of x?
    13·1 answer
  • 9 in<br> 4 in<br> What is the length of the hypotenuse? If necessary, round to the nearest tenth.
    15·1 answer
  • There you goo people
    13·2 answers
  • A grocery store purchases bags of chips for $2 and marks up the price by 162%. The store is having a sale where everything is on
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!