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
romanna [79]
3 years ago
13

Last year, there were 12,000 students at a local college. There were 2000 more female students than male students. How many male

and female students attended the college?
Mathematics
1 answer:
krek1111 [17]3 years ago
5 0
There is 7,000 female students, and 5,000 male students. Because, if there was 2,000 more female students then male, you have to find out what two numbers add up to 12,000. (Tip, to make it easier, take away the thousands, like 7+5)
You might be interested in
IM SO BORED I’m in the car with absolutely nothing to do please help me
s344n2d4d5 [400]

Answer: F

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
An accounting firm is planning for the next tax preparation season. From last years returns, the firm collects a systematic rand
Elena L [17]

Answer:

a)From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And the standard error for the mean would be:

\sigma_{\bar X}= \frac{140}{\sqrt{100}} =14

b) We want this probability:

P(\bar X >120)

And we can use the z score formula given by:

z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}

And replacing we got:

z = \frac{120-90}{\frac{140}{\sqrt{100}}}= 2.143

And we can find this probability with the complement rule and the normal standard deviation or excel and we got:

P( z>2.143) = 1-P(Z

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The central limit theorem states that "if we have a population with mean μ and standard deviation σ and take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed. This will hold true regardless of whether the source population is normal or skewed, provided the sample size is sufficiently large".

Solution to the problem

Part a

From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And the standard error for the mean would be:

\sigma_{\bar X}= \frac{140}{\sqrt{100}} =14

Part b

We want this probability:

P(\bar X >120)

And we can use the z score formula given by:

z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}

And replacing we got:

z = \frac{120-90}{\frac{140}{\sqrt{100}}}= 2.143

And we can find this probability with the complement rule and the normal standard deviation or excel and we got:

P( z>2.143) = 1-P(Z

4 0
3 years ago
figure a was roasted 135 counterclockwise about the orgin to form figure a the perimeter of figure a is 14 units
denpristay [2]

Answer:

Rigid transformations are ways to move an object while not changing its shape or size. A  

translation (slide) moves . object vertically. horizontally or both. A reflection (flip) moves an object across a line of reflection as in a mirror. A rotation (tum) moves an object clockwise or  

object across a line of reflection as in a mirror. A rotation (tum) moves an object clockwise or  

counterclockwise around s point.

Step-by-step explanation:

3 0
3 years ago
Please help me solve this :) <br> I will give Brainlst !!
bonufazy [111]
1. Relation
2. Domain
3. Non linear
4. Range
5. Function
6. Linear
7. Y = mx + b is a linear equation where m is the slope and b is the y-intercept.
6 0
2 years ago
8. Don made deposits of $500 at the end of each year for eight years. The rate is 8% compounded annually. Using the tables found
Sonbull [250]

Answer:

Step-by-step explanation:

P = $ 500 ;r =8% ;  n= 8

A = P* (1+r/100)^n

A= 500 * ( 1 + 8/100)⁸

= 500 * ( 1 + 0.08)⁸  = 500 * 1.08⁸

=500*1.85

= $ 925.45

5 0
2 years ago
Other questions:
  • The population of bees has been decreasing at a rate of 10% per year in 2012 there were 6000 bees in particular hive how many be
    9·1 answer
  • A company lost 1000,000 over 100 days and then lost another 583,684 over the next 390 days. What was the company's average loss
    6·1 answer
  • PLEASE HELP ASAP!! WILL MARK BRAINLIEST
    11·1 answer
  • Use the model to solve the equation.
    8·1 answer
  • Help urgent, which functions are bounded below but not above? Choose all answers that apply.
    7·1 answer
  • Find 1/3 of 5 times 6
    11·1 answer
  • Need help asap!! will mark brainliest
    15·1 answer
  • How do I do this problem
    12·1 answer
  • 3. f(-4) – 3.g(-2) =
    9·1 answer
  • If total advertising expenditures on television advertising declined 4.1% to $141.7 billion in the current year, how much was sp
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!