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Naya [18.7K]
3 years ago
13

Can someone help me please

Mathematics
1 answer:
nikklg [1K]3 years ago
7 0

Answer:

a:3,11

Step-by-step explanation:

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Compare the decimal form of 2/5 and 4/9
aniked [119]

Step-by-step explanation:

they are equal equally.

7 0
3 years ago
Read 2 more answers
Which number is irrational?
julsineya [31]

Answer:

The square root of 3

Step-by-step explanation:

The other ones equal a number Ex Square root of 16 is 4 but the square root of 3 would be a large decimal

7 0
2 years ago
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Joe heard from a reliable source that only 22% of people actually sleep 8 hours or more per night. You do a survey and find 58 o
Juliette [100K]

Answer:

95% Confidence interval:  (31.32%,47.04%)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 148

Number of people who sleep for 8 hours or longer, x = 58

\hat{p} = \dfrac{x}{n} = \dfrac{58}{148} = 0.3918

95% Confidence interval:

\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

Putting the values, we get:

0.3918\pm 1.96(\sqrt{\dfrac{0.3918(1-0.3918)}{148}})\\\\ = 0.3918\pm 0.0786\\\\=(0.3132,0.4704)=(31.32\%,47.04\%)

(31.32%,47.04%)  is the required 95% confidence interval.

8 0
3 years ago
HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
posledela

Answer:

The ballet dancers practice 20 h or more per week.  is right

The jazz dancers practice 20 h or more per week. is wrong

The type of dancing does not seem to affect the number of hours of practice for the dancers in the survey. is right

Step-by-step explanation:

i took the test so no step by step :)

5 0
3 years ago
A rectangular garden is 17 feet wide. Its length is 3 feet more than twice the width. What is the area of the garden?
sleet_krkn [62]

Answer:

a = 629

Step-by-step explanation:

a = w * L

w = 17

L = 2w + 3

a = (17) * (2w + 3)

a = (17) * (2(17) + 3)

a = 17 * (34 + 3)

a = 17 * (37)

a = 629

6 0
3 years ago
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