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
Vitek1552 [10]
3 years ago
9

How to do fractions

Mathematics
2 answers:
Elodia [21]3 years ago
8 0
Look it up or study they are not that hard
stellarik [79]3 years ago
4 0
Use the bridge. the one on the bottom stays on the outside of the bridge and the on the top stays under the bridge.
You might be interested in
A pew research Center project on the state of news media showed that the clearest pattern of news audience growth in 2012 came o
KengaRu [80]

Answer:

Step-by-step explanation:

Given that:

the sample proportion p = 0.39

sample size = 100

Then np = 39

Using normal approximation

The sampling distribution from the sample proportion is approximately normal.

Thus, mean \mu _{\hat p} = p = 0.39

The standard deviation;

\sigma = \sqrt{\dfrac{p(1-p)}{n} }

\sigma = \sqrt{\dfrac{0.39(1-0.39)}{100} }

\sigma = 0.048

The test statistics can be computed as:

Z = \dfrac{{\hat _{p}} - \mu_{_ {\hat p}} }{\sigma_{\hat p}}

Z = \dfrac{0.3 - 0.39 }{0.0488}

Z = -1. 8 4

From the z - tables;

P (\hat p \le 0.3 ) = P(z \le -1.84)

\mathbf{P (\hat p \le 0.3 ) = 0.0329}

(b)

Here;

the sample proportion = 0.39

the sample size n = 400

Since np = 400 * 0.39 = 156

Thus, using normal approximation.

From the sample proportion, the sampling distribution is approximate to the mean \mu_{\hat p} =  p = 0.39

the standard deviation \sigma_{\hat p} = \sqrt{\dfrac{p(1-p)}{n} }

\sigma_{\hat p} = \sqrt{\dfrac{0.39 (1-0.39)}{400} }

\sigma_{\hat p} =0.0244

The test statistics can be computed as:

Z = \dfrac{{\hat _{p}} - \mu_{_ {\hat p}} }{\sigma_{\hat p}}

Z = \dfrac{0.3 - 0.39 }{0.0244}

Z = -3.69

From the z - tables;

P (\hat p \le 0.3 ) = P(z \le -3.69)

\mathbf{P (\hat p \le 0.3 ) = 0.0001}

(c) The effect of the sample size on the sampling distribution is that:

As sample size builds up, the standard deviation of the sampling distribution decreases.

In addition to that, reduction in the standard deviation resulted in increases in the Z score, and the probability of having a sample proportion  that is less than 30% also decreases.

6 0
2 years ago
Jenny says the two expressions 7a – 4 + 3a - 6 and 4a – 10 are<br> equivalent? Is she correct?
zavuch27 [327]

Answer:

no she is wrong

Step-by-step explanation:

7a-4+3a-6=  10a-10 therefore they are not equal

5 0
3 years ago
Read 2 more answers
A chef cooks 9 lbs of chicken for 36 people and 17 lbs of chicken for 68 people
Anastaziya [24]

Answer:

\frac{1}{4} lbs/person

Step-by-step explanation:

Here is the complete question: Find the rate of change for the situation:

A chef cooks 9 lbs of chicken for 36 people and 17 lbs of chicken for 68 people.

Given: 1st situation, A chef cook 9 lbs chicken for 36 people.

           2nd situation, chef cook 17 lbs chicken for 68 people.

∴ 1st situation, weight of chicken per person= \frac{9\ lbs}{36\ person} = \frac{9}{36}

  Weight of chicken per person= \frac{1}{4} lbs/ person

2nd situation, weight of chicken per person= \frac{17\ lbs}{68\ person} = \frac{17}{68}

Weight of chicken per person= \frac{1}{4} lbs/ person

In both the situation chef cook same amount of chicken per person, which is \frac{1}{4} lbs/ person

∴ Rate of change is \frac{1}{4} lbs/ person

5 0
3 years ago
Solve for x Round to the nearest tenth one place after the decimal !
aniked [119]

Answer:

x = 14.4

Step-by-step explanation:

x is sin(angle 24/30)×24

how do we get the angle at 24/30 ?

by using the extended Pythagoras for baselines opposite other than 90 degrees.

c² = a² + b² - 2ab×cos(angle opposite of c)

in our example the angle 24/30 is opposite of the side 18.

so,

18² = 24² + 30² - 2×24×30×cos(angle 24/30)

324 = 576 + 900 - 1440×cos(angle 24/30)

324 = 1476 - 1440×cos(angle 24/30)

1440×cos(angle 24/30) = 1152

cos(angle 24/30) = 1152/1440 = 576/720 = 288/360 = 144/180 = 72/90 = 36/45 = 12/15 = 4/5

angle 24/30 = 36.9 degrees

x = sin(36.9) × 24 = 14.4

4 0
3 years ago
What is the nth term of this sequence?
lions [1.4K]

Answer:

D, you simply just add 1.3 each time.

4 0
2 years ago
Other questions:
  • Washing 24 cars in 4 hours what’s the relationship rate
    5·2 answers
  • Find the velocity in m/s of a baseball thrown 38m from third base to first base in 1.7s​
    14·2 answers
  • A right triangle ABC is shown below:
    13·2 answers
  • Andy is always looking for ways to make money fast. Lately, he has been trying to make money by gambling. Here is the game he is
    6·1 answer
  • URGENT PlZ Help<br>which statement is an example of the transitive property of congruence ​
    7·1 answer
  • If the area is 64 inches squared, what is the missing length ?
    7·2 answers
  • Write an equation for each line :<br><br> m = -4 and the y-intercept is 3
    10·1 answer
  • What is the answer to this
    6·2 answers
  • What is the slope intercept equation of this line?? please help
    14·1 answer
  • Find the probability of being below 514 if the mean of a normal distribution is 474 and the standard deviation is 32.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!