2 years ago

PLZ HELP PLZ PLZ PLZ HELP

1 answer:

5 0

Answer:the diameter is 7

Step-by-step explanation: 21.98 divide by pi is 7 so diameter is 7

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larisa86 [58]

Answer:

the answer is a

Step-by-step explanation:

3 0

3 years ago

Dmitrij [34]

Answer: The value of test statistic is 2.442.

Step-by-step explanation:

Since we have given that

n = 238

Sample mean = 23.2 minutes

Standard deviation = 20.26 minutes

Hypothesis :

$H_0:\mu=20\\H_a:\mu\neq 20$

So, the test statistic value would be

$z=\dfrac{\bar{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\z=\dfrac{23.2-20}{\dfrac{20.26}{\sqrt{236}}}\\\\z=2.442$

Hence, the value of test statistic is 2.442.

4 0

3 years ago

Olenka [21]

(number less tan 10 and more than or equal to 1) times (10^m)

0.00048=4.8 times 10^4

answer si 4.8*10^4

6 0

2 years ago

UNO [17]

Approximately 11 blocks

5 0

3 years ago

Harman [31]

Juan did.

The line on his graph takes longer to get to 8 blocks.;-D

7 0

3 years ago