2 years ago

What noise is used to signify someone dying of an

Mathematics

1 answer:

Brut [27]2 years ago

8 0

A bell ringing is the answer

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What is the value of the 8 in the number 4801?

stiks02 [169]

Answer:

Hundreds place is the answer

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1 year ago

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Ron earns $ 840 in a week. How much will he earn in 36 days?

serg [7]

Answer:

4320$

Step-by-step explanation:

840 : 7(days of week)=120$

120 × 36(days) =4320

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From an industrial area 70 companies were selected at random and 45 of them were panning for expansion next year. Find 95% confi

Lana71 [14]

Answer:

Confidence limit = [52.8%, 75.2%]

Step-by-step explanation:

$P=\frac{45}{70}= 0.64$

$(1-P)=1-0.64=0.36$

$n= 70$

$P$ ± $z$ $\sqrt{\frac{P(1-P)}{n} }$

where the value $z$ will be taken from the z-table for 95% confidence interval

1-0.95= 0.05/2= 0.025

0.95+0.025= 0.0975

From the z-table the value of $z$ corresponding to 0.0975 is 1.96

$0.64$ ± $1.96$ $\sqrt{\frac{0.64*0.36}{70} }$

$0.64$ ± $1.96$ $(0.057)$

$0.64$ ± $0.112$

$64%$ % ± $11.2$ %

so the confidence interval is

$64+11.2=75.2$ %

$64-11.2=52.8$ %

$[52.8, 75.2]$

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1 year ago

The glee club has $90 to spend on pens and pencils. Each pen costs $0.75 and each pencil costs $0.15. Let x represent the number

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Answer:

part a: answer b. 0.75x + 0.15y = 90

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2 years ago

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Given ED, DB which statements about the figure are true? Check all that apply.

Klio2033 [76]

Answer: EB is bisected by DF

A is the midpoint DF

EB is a segment bisector

FA=1/2FC.

Step-by-step explanation:

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1 year ago