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
Nataly [62]
3 years ago
13

Please help me with 2 though 6

Mathematics
1 answer:
Ymorist [56]3 years ago
4 0
It’s making me use 20 characters so here’s a lil text
You might be interested in
Three consecutive integers have a sum of 78. find the inte
VMariaS [17]
Let the 3 numbers be x,x+1,x+2
Given sum of those 3 consecutive integers are 78
X+x+1+x+2=78
3x+3=78
3(x+1)=78
X+1=26
X=26-1
X=25

Therefore the numbers are 25,26,27
5 0
3 years ago
Read 2 more answers
I need help ASAP pls
telo118 [61]

Answer:

Infinite: 2x+7=2+7

One solution= 2x-5= 10

No solution= 2x+7=2x-6

Step-by-step explanation:

7 0
3 years ago
How do you write an equation for the sum of three consecutive numbers equals 384?
emmasim [6.3K]
Let x be the smallest number.
x+(x+1)+(x+2)=384
3x+3=384
3x=381
x=127
The three consecutive numbers are 127, 128 and 129.

Hope my answer helped u :)
4 0
3 years ago
I really don't get these answers but if you could help me that'll mean a lot thank you for answering my question if you did
mixer [17]
Use KMF (Keep multiply flip) 
keep the first fraction as it is
change sign to multiplication
flip numerator and denominator of last fraction
then finish
6 0
3 years ago
Two opposing opinions were shown to a random sample of 1,500 buyers of a particular political news app in the United States. The
kifflom [539]

Answer:

A) 98% Confidence interval for the proportion of all US buyers of this particular app who would have chosen Opinion B

= (0.51, 0.57)

This means that the true proportion of all thay would chose opinion B can take on values between the range of (0.51, 0.57)

B) For the confidence interval obtained to be valid, the conditions stated must be satisfied and for the sampling distribution to be approximately normal, the number of buyers that chose Opinion B and the number of buyers that did not choose Opinion B must both be greater than 10.

Step-by-step explanation:

Confidence Interval for the population proportion is basically an interval of range of values where the true population proportion can be found with a certain level of confidence.

Mathematically,

Confidence Interval = (Sample proportion) ± (Margin of error)

Sample proportion of all US buyers of this particular app who would have chosen Opinion B = 0.54

Margin of Error is the width of the confidence interval about the mean.

It is given mathematically as,

Margin of Error = (Critical value) × (standard Error)

Critical value at 98% confidence interval for sample size of 1500 is obtained from the z-tables.

Critical value = 2.33

Standard error = σₓ = √[p(1-p)/n]

p = sample proportion = 0.54

n = sample size = 1500

σₓ = √(0.54×0.46/1500) = 0.0128685664 = 0.01287

98% Confidence Interval = (Sample proportion) ± [(Critical value) × (standard Error)]

CI = 0.54 ± (2.33 × 0.01287)

CI = 0.54 ± 0.02998)

98% CI = (0.51, 0.57)

98% Confidence interval = (0.51, 0.57)

B) The number of buyers that chose Opinion B and the number of buyers that did not choose Opinion B are both greater than 10. Why must this inference condition be met?

For this confidence interval to be obtained using sample data, a couple of conditions are necessary to be satisfied. They include;

- The sample data must have been obtained using a random sampling technique.

- The sampling distribution must be normal or approximately normal.

- The variables of the sample data must be independent of each other.

On the second point, the condition for a binomial distribution to approximate a normal distribution is that

np ≥ 10

and n(1-p) ≥ 10

The quantity np is the actual sample mean which is the actual number of buyers that chose Opinion B while n(1-p) is the number of buyers that did not chose Opinion B.

For the confidence interval obtained to be valid, the conditions stated must be satisfied and for the sampling distribution to be approximately normal, the number of buyers that chose Opinion B and the number of buyers that did not choose Opinion B must both be greater than 10.

Hope this Helps!!!

8 0
3 years ago
Other questions:
  • In ΔIJK, the measure of ∠K=90°, the measure of ∠J=76°, and JK = 3.6 feet. Find the length of IJ to the nearest tenth of a foot.
    5·1 answer
  • Which of the following factors is not used to categorize terrestrial biomes? temperature precipitation racial distribution altit
    6·2 answers
  • Each small kite costs $4, while each large kite costs $7. If the total money collected selling kites is $150, and 30 kites are s
    8·1 answer
  • If the height is 11 cm and the area is 260.15 cm2 what is the base help please I am just in 6 grade
    13·2 answers
  • 8x + 4 = 4(2x – 3) n
    8·1 answer
  • PLEASE HELP 10 POINTS
    14·1 answer
  • Determine the area of this triangle...
    7·2 answers
  • Find P 20 of the following arithmetic sequence: 206, 212, 218, 224....
    10·1 answer
  • Which models represent 1/4÷6 choose all correct answers​
    9·1 answer
  • 3x+5=19-4x<br>What does x equal?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!