3 years ago

PLEASE HELP ASAP FOR 10 POINTS

Mathematics

1 answer:

Mashutka [201]3 years ago

5 0

Answer:

-a³b²c² - a²b³c² + a²b²c³

Step-by-step explanation:

-a²b²c²(a+b-c)= -a³b²c² - a²b³c² + a²b²c³

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A bank sampled its customers to determine the proportion of customers who use their debit card at least once each month. A sampl

Zinaida [17]

Answer:

(0.084,0.396)

Step-by-step explanation:

The 99% confidence interval for the proportion of customers who use debit card monthly can be constructed as

$p-z_{\frac{\alpha }{2}} \sqrt{\frac{pq}{n} }$

$p=\frac{x}{n}$

$p=\frac{12}{50}$

$p=0.24$

$q=1-p=1-0.24=0.76$

$\frac{\alpha }{2} =\frac{\0.01 }{2}=0.005$

$p-z_{\frac{\alpha }{2}} \sqrt{\frac{pq}{n} }$

$0.24-z_{0.005} \sqrt{\frac{0.24*0.76}{50} }$

$0.24-2.58(0.0604)$

$0.24-0.155832$

By rounding to three decimal places we get,

$0.084$

The 99% confidence interval for the proportion of customers who use debit card monthly is (0.084,0.396).

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2 years ago

Kendra was asked to find the number of students who planned to attend the evening sympothy performance. She was told that 40 per

ch4aika [34]

Answer:

It's B

Step-by-step explanation:

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2 years ago

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The teller show committee sold a total of 5030 tickets in advance. Student tickets cost $3 each and the adult tickets cost $4 ea

4vir4ik [10]

Answer:it’s b..........

Step-by-step explanation:

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3 years ago

4. If you toss a fair coin 10 times and get heads each time, what is the probability that it will

svlad2 [7]

There’s a 5% chance

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3 years ago

Madison rode her bicycle 4.5 miles in 0.75 hour. At the rate, how long would it take her to ride her bicycle an additional 6 mil

scZoUnD [109]

Set up equal ratios

t/6=0.75/4.5 multiply both sides by 6

t=4.5/4.5

t=1 hour

So it will take Madison one hour to ride another six miles.

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3 years ago