1 year ago

The image is not drawn to scale. Which is the measure of ∠A?

Mathematics

1 answer:

dusya [7]1 year ago

7 0

Answer:

Step-by-step explanation:

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A random sample of adults were asked whether they prefer reading an e-book over a printed book. The survey resulted in a sample

djyliett [7]

Answer: $(0.10\ ,\ 0.18)$

Step-by-step explanation:

According to the empirical rule, the 95% confidence interval for the true population proportion is given by :-

$(p'-2\sigma_{p'}\ ,\ p'+2\sigma_{p'})$

Given : . The survey resulted in a sample proportion of p′=0.14, with a sampling standard deviation of σp′=0.02, who preferred reading an e-book.

Then, the 95% confidence interval for the true proportion of adults who prefer e-books will be :-

$(0.14-2(0.02)\ ,\ 0.14+2(0.02))\\\\=(0.14-0.04\ ,\ 0.14+0.04)\\\\=(0.10\ ,\ 0.18)$

Hence, the 95% confidence interval for the true proportion of adults who prefer e-books= $(0.10\ ,\ 0.18)$

8 0

2 years ago

What fractional part of 1 pound is an ounce?

bezimeni [28]

1 pound = 16 ounces
1 ounce =1/16 pound

3 0

3 years ago

If T=[23 -38] [17 -6 ] then what is –10(T)? PLEASE HELP

andrew-mc [135]

Answer:

Step-by-step explanation:

Multiply each term by -10

8 0

2 years ago

Which function is the inverse of f(x) = –5x – 4?

mixas84 [53]

y=-5x-4

x=-5y-4

5y=-x-4

y= -1/5x - 4/5

7 0

2 years ago

Read 2 more answers

A wheel has a diameter of 21 inches. Approximately how far does it travel in 3 revolutions?

RideAnS [48]

So each 1 revolution it travels the distance around the rim of the wheele aka circumference
circumference=pi times diameter
diameter=21
circunference=pi times 21 or 21pi
so distance=number of revolutions times circunference
number of revolutions=3
subsitute

distance=3 times 21pi
distance=63pi

answer is 63pi
or aprox pi to 3.14 and do 63 times 3.14=197.82
aprox 197.82 inches

5 0

2 years ago