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
docker41 [41]
3 years ago
6

A right cone has an altitude of 4 units and a base diameter of 6 units. What is it’s lateral area?

Mathematics
1 answer:
fenix001 [56]3 years ago
4 0

Answer:

Lateral area  =

pi *  (radius) * √ [ height ^2  + radius^2 ]  =

pi *  ( 4 )  * √ [  4^2 + 3^2 ]  =

pi * ( 4 ) * √25  =

pi * ( 4 ) * (5 )  =

20 pi  units^2  ≈   62.8 units^2

Step-by-step explanation:

You might be interested in
Factor completely: (3a+6)^2
zvonat [6]
(3(a+2))^2 factored
4 0
3 years ago
To help consumers assess the risks they are​ taking, the Food and Drug Administration​ (FDA) publishes the amount of nicotine fo
Blizzard [7]

Answer:

t=\frac{26.8-29.9}{\frac{2.7}{\sqrt{9}}}=-3.44    

df=n-1=9-1=8  

p_v =P(t_{(8)}  

Since the p value is lower than the significance level we have enough evidence to reject the null hypothesis and is not enough evidence to conclude that the claim is true.

Step-by-step explanation:

Data given

\bar X=26.8 represent the sample mean

s=2.7 represent the sample standard deviation

n=9 sample size  

\mu_o =29.9 represent the value that we want to test

\alpha=0.05 represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

System of hypothesis

We need to conduct a hypothesis in order to check if the true mean exceed 29.9 or no, the system of hypothesis would be:  

Null hypothesis:\mu \geq 29.9  

Alternative hypothesis:\mu < 29.9  

The statistic is given by:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

Calculate the statistic

We can replace in formula (1) the info given like this:  

t=\frac{26.8-29.9}{\frac{2.7}{\sqrt{9}}}=-3.44    

P-value

The degrees of freedom are given by:  

df=n-1=9-1=8  

Since is a one sided test the p value would be:  

p_v =P(t_{(8)}  

Conclusion  

Since the p value is lower than the significance level we have enough evidence to reject the null hypothesis and is not enough evidence to conclude that the claim is true.

6 0
4 years ago
Determine which of the four levels of measurement​ (nominal, ordinal,​ interval, ratio) is most appropriate for the data below.
ira [324]

Answer:

The ratio level of measurement is most appropriate because the data can be ordered differences can be found and are meaningful, and there is a natural starting zero point.

That's the correct answer since our variable is numerical and have a natural starting point at 0 and the negative values not makes sense.

Step-by-step explanation:

The interval level of measurement is most appropriate because the data can be ordered, differences (obtained by subtraction) can be found and are meaningful, and there is no natural starting point.

Our variable is numerical but we have a starting point defined so it can't be an interval variable.

The nominal level of measurement is most appropriate because the data cannot be ordered.

False on this case the bolume can't be a nominal variable since we don't have a categorical variable.

The ordinal level of measurement is most appropriate because the data can be ordered, but differences (obtained by subtraction) cannot be found or are meaningless.

False we don't have ordered relationship among the variable’s observations

The ratio level of measurement is most appropriate because the data can be ordered differences can be found and are meaningful, and there is a natural starting zero point.

That's the correct answer since our variable is numerical and have a natural starting point at 0 and the negative values not makes sense.

8 0
3 years ago
PLEASE HELP THANKS, Scale factoring
Radda [10]

Answer:

17.5 or 35

Step-by-step explanation:

because 350/10=35

350/12=17.5

8 0
3 years ago
Andrew says that 10x + 6 and 5x + 11 are equivalent because they both equal 16 when x= 1. Is Andre correct in saying they're equ
Leokris [45]

Hey love! <3

Answer:

The right answer is that Andrew is correct in saying they are equivalent.

Step-by-step explanation:

<em>In Andre's statement x is equal to 1 unless further added into the statement, both sides equal the same amount after simplification. </em>

<em>Hope this is helpful! (⊙‿⊙✿) Sincerely, Kelsey from Brainly.</em>

<em>~ #LearnWithBrainly ~</em>

7 0
3 years ago
Other questions:
  • What is the 6th term of the geometric sequence 1024,528,256
    8·1 answer
  • What is this problem?? I need help fast
    6·1 answer
  • An arch is in the shape of a parabola. It has a span of 100 feet and a maximum height of 25 ft.
    5·1 answer
  • Dianna has 4 quarters, 3 dimes, and 3 nickels in her purse. She reaches into her purse and randomly grabs two coins, one at a ti
    13·2 answers
  • 16 is 80% of what total amount?
    8·2 answers
  • 1 Find the probability of drawing a 7 of diamonds. ( enter your answer as a fraction.)
    9·1 answer
  • What is the distance between -9 and -1 on a number line ?
    7·1 answer
  • Look at the picture....
    5·1 answer
  • What is 23x76 because im stuck
    10·2 answers
  • Negative 4,200 divided by 300
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!