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
mars1129 [50]
3 years ago
13

Which equations are equivalent to Three-fourths + m = negative StartFraction 7 over 4 EndFraction? Select three options.

Mathematics
2 answers:
sammy [17]3 years ago
3 0

Answer:

Feb 28, 2020 — ... EndFraction? Select all that apply. ... X = StartFraction 6 over 4 EndFraction x = Negative StartFraction 6 over 4 EndFraction x minus one-fourth = negative StartFraction 5 over 4 EndFraction x = negative three-halves x = negative three-fourths. 2 ... Ashley solved the equation for m using the following steps.

2 answers

 

·

 

Top answer:  

Answer: (B)x=-\dfrac{6}{4}Step-by-step explanation: We want to determine which ...

Step-by-step explanation:

zzz [600]3 years ago
3 0

Answer:

A, B , and E

Step-by-step explanation:

Correct me if im wrong!

You might be interested in
A sample of eight workers in a clothing manufacturing company gave the following figures for the amount of time(in minutes) need
lilavasa [31]

Answer:

10.108 < \mu < 13.892    

Step-by-step explanation:

1) Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

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".

\bar X represent the sample mean for the sample  

\mu population mean (variable of interest)

s represent the sample standard deviation

n represent the sample size  

We have the following distribution for the random variable:

X \sim N(\mu , \sigma=0.45)

And by the central theorem we know that the distribution for the sample mean is given by:

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

2) Confidence interval

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

In order to calculate the mean and the sample deviation we can use the following formulas:  

\bar X= \sum_{i=1}^n \frac{x_i}{n} (2)  

s=\sqrt{\frac{\sum_{i=1}^n (x_i-\bar X)}{n-1}} (3)  

The mean calculated for this case is \bar X=12

The sample deviation calculated s=2.268

In order to calculate the critical value t_{\alpha/2} we need to find first the degrees of freedom, given by:

df=n-1=8-1=7

Since the Confidence is 0.95 or 95%, the value of \alpha=0.05 and \alpha/2 =0.025, and we can use excel, a calculator or a tabel to find the critical value. The excel command would be: "=-T.INV(0.025,7)".And we see that t_{\alpha/2}=2.36

Now we have everything in order to replace into formula (1):

12-2.36\frac{2.268}{\sqrt{8}}=10.108    

12+2.36\frac{2.268}{\sqrt{8}}=13.892

So on this case the 95% confidence interval would be given by (10.108;13.892)

10.108 < \mu < 13.892    

7 0
3 years ago
Graphs of the following equations are straight lines except :
scoundrel [369]

Answer:

D

Step-by-step explanation:

6 0
3 years ago
Johnathon is planting potatoes and carrots in his
poizon [28]

Answer: 3

Step-by-step explanation: well if he does rows of 10 then it will have to be 3   and he will have 20 potato plants left over.

4 0
3 years ago
What is the equation in point-slope form of the line passing through (−2, 0) and (2, 8)? y = 2(x + 2) y = 2(x − 2) y = −2(x − 2)
Nat2105 [25]
The first one y=2(x+2)
8 0
3 years ago
HELP QUICK PLSS !! <br><br> How many terms are in this expression?<br><br> 1 + 5t
timofeeve [1]

Answer:

One

Step-by-step explanation:

There is only one letter there

5 0
3 years ago
Read 2 more answers
Other questions:
  • The jogger can run at an average speed of 5.5 miles per hour up the slope and 6.5 miles per hour going down the slope. The jogge
    15·1 answer
  • Answer Question Please And Thank You
    11·1 answer
  • Solve the equation by using square roots. 2 x 2 − 9 = 11
    8·1 answer
  • Suppose that you construct a histogram and a relative frequency histogram corresponding to a particular frequency table. Identif
    5·2 answers
  • How did he get from 3^-16/3/3^-8/3 to 0.00285333857/0.00285333857??? (The circled part) Because when I put it in the calculator
    6·1 answer
  • Help help help help help
    15·1 answer
  • Recall that the perimeter of a figure such as the one to the right is the sum of the length of its sides. Find the perimeter of
    11·1 answer
  • Solve
    9·1 answer
  • Are these functions or not?​
    12·1 answer
  • X + y = 92 and y = 3x - 4
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!