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
Phoenix [80]
2 years ago
13

Averi was trying to factor 4x^2+20x-164x

Mathematics
2 answers:
loris [4]2 years ago
7 0

Answer:

the width is 24

Step-by-step explanation:

lozanna [386]2 years ago
3 0

Answer:

Width=x ^2 +5x−4

Step-by-step explanation:

You might be interested in
PLS HELP ME <br> its due soon
vivado [14]

Answer:

whats the answer???

Step-by-step explanation:

13 was subtracted from a number and that difference was then divided by 5. After which, that quotient was multiplied by 7. The resulting product was -7. What was the number? (

6 0
3 years ago
What is the seventh term of a geometric sequence that has a common ratio of –3 and the first term is –4?
rjkz [21]
An= A1 r ^(n-1)
An= -4 (-3)^(n-1)
An= -4 (-3)^(7-1)
An= -4 (729)
An= -2916

I think this is right :)
4 0
3 years ago
In early 2012, the Pew Internet and American Life Project asked a random sample of U.S. adults, "Do you ever ... use Twitter or
8090 [49]

Answer:

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

\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}

And the confidence interval is given by:

(0.123, 0.177)

And for this case the interval contains the value 0.16, so then we can conclude at 5% of significance that the true proportion is not different from 0.16

Step-by-step explanation:

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".  

The population proportion have the following distribution

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

Solution to the problem

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 95% of confidence, our significance level would be given by \alpha=1-0.95=0.05 and \alpha/2 =0.025. And the critical value would be given by:

z_{\alpha/2}=-1.96, z_{1-\alpha/2}=1.96

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

\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}

And the confidence interval is given by:

(0.123, 0.177)

And for this case the interval contains the value 0.16, so then we can conclude at 5% of significance that the true proportion is not different from 0.16

3 0
3 years ago
Look for a Pattern Identify the coordinates of four points on the line with
Alexeev081 [22]

Answer:

I dont know the answer so I cant help

4 0
3 years ago
Scenario: A tiger is running at a speed of 15 miles per hour. It's food , an antelope is 5 miles away running at a speed of 5 mi
alekssr [168]
Oh naw i cant do math
6 0
3 years ago
Other questions:
  • QUICKLY!!!!!!!!!!!! A family has two cars. The first car has a fuel efficiency of 40 miles per gallon of gas and the second has
    10·2 answers
  • alex earned $20. he earned 1/4 of the amount rob earned. how much did rob earn? write an equation to match.
    8·1 answer
  • Which is greater, 0.49 or 94%??
    12·2 answers
  • Help me please people
    6·1 answer
  • Maya is packing her backpack for hike. In one pocket, she puts in a 1/2 pound bag of trail mix,a water bottle weighing 2 1/8 pou
    14·1 answer
  • 15 POINTSSS
    10·2 answers
  • Tacey has a square piece of cloth. She cuts 3 inches off of the length of the square and 3 inches off of the width. The area of
    15·1 answer
  • IF YOU $80 AND THEN GET $20 MORE,WHAT IS THE PERCENTAGE
    8·1 answer
  • Elaine collects coins. At the beginning of last year, she had 76 coins but by the end of the year, she had 196 coins. Estimate h
    9·1 answer
  • PLEASE HELPP AND SHOW WORK​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!