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Gekata [30.6K]
2 years ago
11

Graph by inequality x+4y=2

Mathematics
1 answer:
tangare [24]2 years ago
7 0
Answer: Y=-1/4x+2
Slope: -1/4
Y intercept: 2

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The spinner shown below will be used to play a game. If the pointer on the spinner is spun 120 times, how many times would you e
MAVERICK [17]

Answer:

90?

Step-by-step explanation:

im assuming it is a 4 color spinner, so I think it would be about 90 times

6 0
2 years ago
What is the value of 9C6? A. 54 B. 84 C. 6480 D. 60,480
Verdich [7]

The solution would be like this for this specific problem:

<span><span>9 ! </span><span>
<span>------- </span>
<span>6 ! 3! </span>


<span>9 x 8 x 7 </span>
<span>-------------- </span>
<span>6 </span></span></span>   504 / 6 = 84   <span>So the value of 9C6 is <span>84.</span></span>  

<span>If you have any other questions, please don’t hesitate to ask again.</span>

7 0
3 years ago
A boat travels 105 km downstream in 5 hours. The return trip upstream takes 7 hours. Find the speed of the boat in still water a
notsponge [240]
Speed of the boat = u
speed of the current = v

in downstream,
u - v = 105/5
u - v = 21

in upstream
u + v = 105/7
u + v = 15

add both equations
2u = 36
u = 18

v = -3

so
speed of the boat = 18 km/h
speed of the current = 3 km/h
4 0
2 years ago
What is the radius and diameter of each circle ?
Oxana [17]

Answer:

A

radius is 11

diameter is 22

B

radius is 15

diameter is 30

C

radius is 13

diameter is 26

D

radius is 7

diameter is 14

7 0
2 years ago
Read 2 more answers
In the 2000 presidential election, three candidates split the vote as follows:
Lera25 [3.4K]

Answer:

c 23 and 0.46 are statistics and 0.484 is a  parameter

True. For this case the value 0.46 represent t statistic since from the sample obtained we can calculate the sample proportion of people who voted for Gore like this:

\hat p_{Gore]=\frac{X}{n}=\frac{23}{50}=0.46

Where X represent the people with the characteristic desired in the random sample selected.

So then we can say that 23 and 0.46 represent statistics since comes from the sample. And the value 0.484 is obtained from the population so then represent a parameter.  

Step-by-step explanation:

Previous concepts

A parameter is any "numerical quantity that characterizes a given population or some aspect of it". For this case we are interested on proportions and we denote the population proportion by p

A statistic is "used to estimate the value of a population parameter". In other words is just an estimation of the population parameter of interest. Four our case the sample proportion denoted by \hat p represent the statistic for this case.

Solution for the problem

a 0.46 and 0.484 are statistics

False. 0.484 is not an statistic since it's the outcome from the original population and would represent the parameter "proportion of people who vote for Gore"

b 50 and 23 are statistics and 0.484 is a  parameter

False. The sample size is not an statistic is just a value selected in order to calculate the statistic.

c 23 and 0.46 are statistics and 0.484 is a  parameter

True. For this case the value 0.46 represent t statistic since from the sample obtained we can calculate the sample proportion of people who voted for Gore like this:

\hat p_{Gore]=\frac{X}{n}=\frac{23}{50}=0.46

Where X represent the people with the characteristic desired in the random sample selected.

So then we can say that 23 and 0.46 represent statistics since comes from the sample. And the value 0.484 is obtained from the population so then represent a parameter.  

6 0
3 years ago
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