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MArishka [77]
3 years ago
5

in a harris poll adults were asked if they are in favor abolishing the penny . Among the responses, 1243 answeered no 481 answer

ed yes and 351 had no opinion. what is the sample proportion of yes responses, and what notation is used to represent it?
Mathematics
1 answer:
Dovator [93]3 years ago
3 0
Given that 481 out 0f 1,243 respondents answered 'yes', the sample proportion is given by:

\hat{p}= \frac{481}{1243} \approx0.39

The notation used for the sample proportion is \hat{p}.
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When Vince does 14 push-ups and 12 sit-ups, it takes a total of 52 seconds. In comparison, he needs 48 seconds to do 12 push-ups
marshall27 [118]

Answer:

it takes 2 seconds to do one situp

it takes 2 seconds to do one pushup

to do 14 pushups, it takes 28 seconds.

to do 12 situps it takes 24 seconds

to do 12 pushups, it takes 24 seconds

BRAINLIEST PLEASE!

hope this helps :)

Step-by-step explanation:

14x + 12y = 52

12x + 12y = 48

^^^ this is an inequality that we can make.  

x stands for pushups

y stands for situps

if we subtract the second equation from the first, we get

2x = 4

x = 2

now we can place x in one of the equations to solve for y

12(2)+12y=48

24 + 12y = 48

12y = 24

y = 2

5 0
2 years ago
Find −914+27. Write your answer as a fraction in simplest form.
vfiekz [6]

Answer:

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914-27=887

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5 0
3 years ago
PLEASE HELP!!! PLATO ALGEBRA 2
andrey2020 [161]

Answer:

(gof) (4) = 9

Hence, option A is true.

Step-by-step explanation:

f(x)=-x³

g(x)=|1/8x -1|

(gof) (4) = g{f(4)}

First wee need to determine f(4)

f(4)=-(4)³

    = -64

so

  (gof) (4) = g{f(4)} = g(-64)

                             =  \left|\frac{1}{8}\left(-64\right)-1\right|

                             =\left|-\frac{1}{8}\cdot \:64-1\right|

                             =\left|-8-1\right|

                             =\left|-9\right|

\mathrm{Apply\:absolute\:rule}:\quad \left|-a\right|=a

                             =9        

Thus,

(gof) (4) = 9

Hence, option A is true.

8 0
2 years ago
What are scenarios for the ratios 2:10, 10:2, & 12:1?
frozen [14]

Answer:

2:10 2/10 2 to 10 10:2 10/2 10 to 2 12:1 12/1 12 to 1

Step-by-step explanation:

3 0
3 years ago
Ted likes to run long distances. He can run 20 km in 95 minutes.He wants to know how many kilometers he will go if he runs the s
gladu [14]
You just have to cross multiply. 20 x 285 = 5700. 5700 / 95 = 60.

He will run 60km
5 0
3 years ago
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