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
fenix001 [56]
2 years ago
7

A=20 B=10 C=23 D=29.2

Mathematics
1 answer:
11111nata11111 [884]2 years ago
3 0
It’s 20 inches I think
You might be interested in
PLEEAAASE HELPPPPP<br><br>Distance = ________ x time<br><br>A. flow<br>B. rate<br>C. work​
scZoUnD [109]

Answer:

B:rate

Step-by-step explanation:

the formula distance= rate × time

8 0
3 years ago
Read 2 more answers
Chris Paul is shooting free throws. Making or missing free throws doesn't change the probability that he will make his next one,
mina [271]

Answer:

Do you even know who Chris Paul is

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
In the past decades there have been intensive antismoking campaigns sponsored by both federal and private agencies. In one study
DIA [1.3K]

Answer:

z=\frac{0.384-0.362}{\sqrt{0.374(1-0.374)(\frac{1}{4276}+\frac{1}{3908})}}=2.055    

The p value can be calculated from the alternative hypothesis with this probability:

p_v =2*P(Z>2.055)=0.0399    

And the best option for this case would be:

C. between 0.01 and 0.05.

Step-by-step explanation:

Information provided

X_{1}=1642 represent the number of smokers from the sample in 1995

X_{2}=1415 represent the number of smokers from the sample in 2010

n_{1}=4276 sample from 1995

n_{2}=3908 sample from 2010  

p_{1}=\frac{1642}{4276}=0.384 represent the proportion of smokers from the sample in 1995

p_{2}=\frac{1415}{3908}=0.362 represent the proportion of smokers from the sample in 2010

\hat p represent the pooled estimate of p

z would represent the statistic    

p_v represent the value for the pvalue

System of hypothesis

We want to test the equality of the proportion of smokers and the system of hypothesis are:    

Null hypothesis:p_{1} = p_{2}    

Alternative hypothesis:p_{1} \neq p_{2}    

The statistic is given by:

z=\frac{p_{1}-p_{2}}{\sqrt{\hat p (1-\hat p)(\frac{1}{n_{1}}+\frac{1}{n_{2}})}}   (1)  

Where \hat p=\frac{X_{1}+X_{2}}{n_{1}+n_{2}}=\frac{1642+1415}{4276+3908}=0.374  

Replacing the info given we got:

z=\frac{0.384-0.362}{\sqrt{0.374(1-0.374)(\frac{1}{4276}+\frac{1}{3908})}}=2.055    

The p value can be calculated from the alternative hypothesis with this probability:

p_v =2*P(Z>2.055)=0.0399    

And the best option for this case would be:

C. between 0.01 and 0.05.

7 0
3 years ago
Plz help I will make you brainliest!Thanks
STatiana [176]
Use the formula V=AbH and 48=16h will be the second step and then divide by 16 and then you get the answer
7 0
3 years ago
Read 2 more answers
Explain your model for the problem.
serg [7]
Number of apples=12 times numer of bags=12n

neeeds at least 75 apples (1 per student)
12n≥75
divide both sides by 12
n≥6.25
can't buy 0.25 of a bag
7
needs to buy 7 bags
6 0
3 years ago
Other questions:
  • Find the product. (3x 2 - 5x + 3)(3x - 2)
    5·1 answer
  • This figure consists of two semicircles and a rectangle.
    10·2 answers
  • There are 8 teachers going to the science museum if each teacher pays 15 to get inside how many did the teachers pay
    6·1 answer
  • Shoko bought a box of popcorn for$3.50 and three medium drinks. Define a variable and write an expression to represent the total
    6·2 answers
  • Solve.<br><br> -15 = -0.2k<br><br> k =
    8·1 answer
  • In the picture above, parallel lines p and q are cut by transversal line t. If the measure of angle 1 is 11x+7 and the measure o
    10·1 answer
  • Please help numbers 2-20 evens only
    6·2 answers
  • PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    11·1 answer
  • Herman buys a mountain bike priced at $525.90 If the sales tax is 10%,what will be the total cost including tax?
    10·1 answer
  • Please please please help me I’ll give brainly
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!