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
Galina-37 [17]
3 years ago
14

5/6 + (-4/9)-(-2) ??????

Mathematics
2 answers:
weqwewe [10]3 years ago
8 0
It would be 43/18. you should be able to simplify it if not let me know :)
juin [17]3 years ago
6 0

Answer:

2 7/18

Step-by-step explanation:

Follow the pemdas order of operations, apply the + (-a) = a Rule. Add and subract from left to right. 5/6 - 4/9 = 7/18 with 2 and it gives you your answer but keep in mind the two multiples are 6,9. Hope this helps!

You might be interested in
The heights of a random sample of 50 college students showed a mean of 174.5 centimeters and a standard deviation of 6.9 centime
Minchanka [31]

Answer:

Step-by-step explanation:

Hello!

For me, the first step to any statistics exercise is to determine what is the variable of interest and it's distribution.

In this example the variable is:

X: height of a college student. (cm)

There is no information about the variable distribution. To estimate the population mean you need a variable with at least a normal distribution since the mean is a parameter of it.

The option you have is to apply the Central Limit Theorem.

The central limit theorem states that if you have a population with probability function f(X;μ,δ²) from which a random sample of size n is selected. Then the distribution of the sample mean tends to the normal distribution with mean μ and variance δ²/n when the sample size tends to infinity.

As a rule, a sample of size greater than or equal to 30 is considered sufficient to apply the theorem and use the approximation.

The sample size in this exercise is n=50 so we can apply the theorem and approximate the distribution of the sample mean to normal:

X[bar]~~N(μ;σ2/n)

Thanks to this approximation you can use an approximation of the standard normal to calculate the confidence interval:

98% CI

1 - α: 0.98

⇒α: 0.02

α/2: 0.01

Z_{1-\alpha /2}= Z_{1-0.01}= Z_{0.99} =2.334

X[bar] ± Z_{1-\alpha /2} * \frac{S}{\sqrt{n} }

174.5 ± 2.334* \frac{6.9}{\sqrt{50} }

[172.22; 176.78]

With a confidence level of 98%, you'd expect that the true average height of college students will be contained in the interval [172.22; 176.78].

I hope it helps!

4 0
2 years ago
From 1000, create a pattern by subtracting 8 from each number and stop at 5 numbers
shusha [124]
Well subtract 8 from 1000 and then do that five times. so 992,984,976,968, and 960<span />
7 0
3 years ago
What’s a mean,median,and mode?
tamaranim1 [39]

The mean is the average you're used to, where you add up all the numbers and then divide by the number of numbers. The median is the middle value in the list of numbers. Mode is the number which appears most often in a set of numbers.

Hope this helps you :)

5 0
3 years ago
Classify the four angles of the quadrilateral
salantis [7]

Answer:

<A = right angle

<B = acute angle

<C = obtuse angle

<D = acute angle

Step-by-step explanation:

Right angle = 90 degrees

Acute angle = less than 90 degrees

Obtuse angle = more than 90 degrees

7 0
2 years ago
Read 2 more answers
Pinky put her wet clothes inside the room for drying. But her mom told her to put it under the sun. Give reason why her mom told
lara31 [8.8K]

1. sun gives warmth and the clothes will dry faster

2. the water from the clothes evaporates into the air -> air is moist -> more chance of mold in the room

5 0
2 years ago
Read 2 more answers
Other questions:
  • How can i use scalling to help predict the product of a number anda fraction
    14·1 answer
  • A wool sweater originally costs $42.00. if the sweater is on sale for 25% off, what is the new cost of the sweater? $
    15·2 answers
  • 1. Examine the expression 5x + 9 - 2x - 7y.
    7·1 answer
  • Someone please help me!
    9·1 answer
  • The local sporting goods store is having a 40% off sale on hockey gear that normally costs $100. You will have to pay a 7% sales
    12·2 answers
  • What the inverse of h(x)=2x^3+3​
    15·1 answer
  • What is the base of a triangle that has an area of 60 square centimeters and a height of 8 centimeters?
    6·1 answer
  • How to solve this problem​
    9·2 answers
  • The rates of change, true or false​
    8·1 answer
  • bills normal temperature is 98.6 today ballistic and has a temperature of 104.3 how many degrees above his normal temperature is
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!