2 years ago

Whats 25 ÷ 5 and 45 ÷ 9

1 answer:

4 0

25 divided by 5 is 5, 45 divided by 9 is 5

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kipiarov [429]

Answer:

x-4=19

Step-by-step explanation:

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2 years ago

shusha [124]

Its called a Rhombus

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3 years ago

natka813 [3]

Answer: C. 12.5

Step-by-step explanation:

Given : A manufacturer of new light bulbs claims the average lifetime of its long-life bulb is more than 4000 hours.

Population mean : $\mu=4000$

Sample size : n= 100

Sample mean : $\overline[x}=4500$

Standard deviation: $s=400$

The value of test-statistic is given by :-

$z=\dfrac{\overline{x}-\mu}{\dfrac{s}{\sqrt{n}}}\\\\\Rightarrow\ z=\dfrac{4500-4000}{\dfrac{400}{\sqrt{100}}}\\\\\Rightarrow\ z= 12.5$

Hence, the value of the test statistic for this problem is 12.5.

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2 years ago

ASHA 777 [7]

Answer:

15/3

Step-by-step explanation:

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2 years ago

Karolina [17]

I’m pretty sure it’s just 30

8 0

2 years ago