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
Dominik [7]
3 years ago
6

What is 4 and 3/4 minus 1/3 in fraction form

Mathematics
1 answer:
arsen [322]3 years ago
6 0
4 3/4-1/3=4 1/2= 9/2
You might be interested in
The glacier moves 5 centimeters in 8 days. How many days does it take the glacier to move 1 centimeter?
marshall27 [118]
1.6 days because 8/5 = 1.6
6 0
3 years ago
A set of data items is normally distributed with a mean of 400 and a standard deviation of 60. Find the data item in this distri
Softa [21]

Answer:

The data item is X = 580

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean of 400 and a standard deviation of 60.

This means that \mu = 400, \sigma = 60

z=3

We have to find X when Z = 3. So

Z = \frac{X - \mu}{\sigma}

3 = \frac{X - 400}{60}

X - 400 = 3*60

X = 580

The data item is X = 580

6 0
3 years ago
Can somoene help me with this question please
Alex

Answer:

About 260 seconds

Step-by-step explanation:

Tha rate is:

A: 8L/1.66666m

b: 10L/1m (converted to litres)

Divide 2400 by those rates above which:

2400 / (8/1.66666) = 500

2400 / (10/1) = 240

500 - 240 = 260

7 0
2 years ago
What is the sign of -4-8
dusya [7]

Answer:

The sign should be negative ( - )!

Step-by-step explanation:

-4 - 8 = -12

Please mark Brainliest!!! =D

7 0
3 years ago
A manufacturer of running shoes knows that the average lifetime for a particular model of shoes is 15 months. Someone in the res
Alexus [3.1K]

Answer:

Step-by-step explanation:

Hello!

So you have a new type of shoe that lasts presumably longer than the ones that are on the market. So your study variable is:

X: "Lifetime of one shoe pair of the new model"

Applying CLT:

X[bar]≈N(μ;σ²/n)

Known values:

n= 30 shoe pairs

x[bar]: 17 months

S= 5.5 months

Since you have to prove whether the new shoes last more or less than the old ones your statistical hypothesis are:

H₀:μ=15

H₁:μ≠15

The significance level for the test is given: α: 0.05

Your critical region will be two-tailed:

Z_{\alpha /2} = Z_{0.025}= -1.96

Z_{1-\alpha /2} = Z_{0.975}= 1.96

So you'll reject the null Hypothesis if your calculated value is ≤-1.96 or if it is ≥1.96

Now you calculate your observed Z-value

Z=<u>x[bar]-μ</u> ⇒ Z=<u>    17-15     </u> = 1.99

     σ/√n              5.5/√30

Since this value is greater than the right critical value, i.e. Zobs(1.99)>1.96 you reject the null Hypothesis. So the average durability of the new shoe model is different than 15 months.

I hope you have a SUPER day!

5 0
3 years ago
Other questions:
  • Help me solve this math problem!
    5·1 answer
  • 9/10 greater or less than 6/8
    12·2 answers
  • An airline charges one fee for small luggage bags, and a larger fee for large luggage bags. One family checks five small bags an
    10·2 answers
  • How do you simpilify the complex fraction 5/6 over 1 1/4
    14·1 answer
  • A. the sum of two numbers is 52. One number is three less than quadruple the other number. What are the two numbers?
    8·1 answer
  • How many solutions does an equation of the form x^2- k^2= 0 have?
    11·1 answer
  • Jackson can lay 6000 ft² of tile in 3 h.
    13·2 answers
  • What is the surface area for this triangular prism?
    10·1 answer
  • 1
    6·1 answer
  •  A wall in Marcus's bedroom is 813 feet high and 1615 feet long. If he paints 13 of the wall blue, how many square feet will be
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!