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
aksik [14]
3 years ago
13

Tryna pass these midterms​ help me please

Mathematics
1 answer:
V125BC [204]3 years ago
5 0

Answer:

D

Step-by-step explanation:

7 pounds to 15 dollars is equal to 3 pounds to X dollars

You might be interested in
A pharmaceutical company receives large shipments of ibuprofen tablets and uses an acceptance sampling plan. This plan randomly
Keith_Richards [23]

Answer:

0.7208 = 72.08% probability that this whole shipment will be accepted.

Step-by-step explanation:

For each tablet, there are only two possible outcomes. Either it meets the required specifications, or it does not. The probability of a tablet meeting the required specifications is independent of any other tablet, 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.

4% rate of defects

This means that p = 0.04

26 tablets

This means that n = 26

What is the probability that this whole shipment will be accepted?

Probability that at most one tablet does not meet the specifications, which is:

P(X \leq 1) = P(X = 0) + P(X = 1)

Thus

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

P(X = 0) = C_{26,0}.(0.04)^{0}.(0.96)^{26} = 0.3460

P(X = 1) = C_{26,1}.(0.04)^{1}.(0.96)^{25} = 0.3748

Then

P(X \leq 1) = P(X = 0) + P(X = 1) = 0.3460 + 0.3748 = 0.7208

0.7208 = 72.08% probability that this whole shipment will be accepted.

3 0
3 years ago
27x 5 + 9x 4 - 18x 3) 9x 2
notka56 [123]
In guessing it's 2,106.......
4 0
3 years ago
A survey found that​ women's heights are normally distributed with mean 63.2 in. and standard deviation 2.4 in. The survey also
Effectus [21]

Answer: 99.51%

Step-by-step explanation:

Given : A survey found that​ women's heights are normally distributed.

Population mean : \mu =63.2  \text{ inches}

Standard deviation: \sigma= 2.4\text{ inches}

Minimum height = 4ft. 9 in.=4\times12+9\text{ in.}=57\text{ in.}

Maximum height = 6ft. 2 in.=6\times12+2\text{ in.}=74\text{ in.}

Let x be the random variable that represent the women's height.

z-score : z=\dfrac{x-\mu}{\sigma}

For x=57, we have

z=\dfrac{57-63.2}{2.4}\approx-2.58

For x=74, we have

z=\dfrac{74-63.2}{2.4}\approx4.5

Now, by using the standard normal distribution table, we have

The probability of women meeting the height requirement :-

P(-2.58

Hence, the percentage of women meeting the height requirement = 99.51%

8 0
3 years ago
Which equation represents the line that is perpendicular to y = 1/4 and passes through (-6,-9)
cluponka [151]

Answer:

B

Step-by-step explanation:

y = \frac{1}{4} is the equation of a horizontal line parallel to the x- axis.

A line perpendicular to it will be a vertical line parallel to the y- axis with equation

x = c

where c is the value of the x- coordinates the line passes through.

The line passes through (- 6, - 9 ) with equation

x = - 6 → B

5 0
3 years ago
Find the value of g(x)=2-x^2 and f(x)=2x-1 . f(-4)
Ivenika [448]

Answer:

f(-4) = -9

Step-by-step explanation:

f(x)=2x-1

Let x = -4

f(-4)=2*-4-1

      = -8 -1

      = -9

6 0
3 years ago
Read 2 more answers
Other questions:
  • Sandy has 16 roses,8daisies,and32 tulips.She wants to arrangee all the flowers in bouguets.Each bouguet has the same number of f
    15·1 answer
  • Explain how deductive reasoning is used to prove an argument.
    5·1 answer
  • What is the missing value?
    7·1 answer
  • 12) A bag contains 3 red marbles, 4 black
    10·2 answers
  • Please help with this problem . Break it down for me 15-1/6n=1/6n-1
    15·2 answers
  • What is the answer to 7x-7=12x+13
    7·2 answers
  • Convert the given radian measure to a degree measure.<br><br><br>Negative 1.7 pi <br>it is -306
    14·1 answer
  • Help for this question
    6·1 answer
  • Which situation is a non-proportional situation? And which situation is proportional?
    8·1 answer
  • How do i answer this problem s2 + 18s = 47 and it being in integers
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!