2 years ago

What is the slope of a line perpendicular to the line whose equation is 3x-3y=543x−3y=54. Fully simplify your answer.

Mathematics

1 answer:

yaroslaw [1]2 years ago

7 0

Your answer is 2x/y.

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100 is 20% of what number?

Rus_ich [418]

Answer:

500

20%=100

100%= 5×100=500 (cause 100 is 20%, and in 100% is five 20% so...)

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3 years ago

A sample of bacteria is growing at an hourly rate of 14% according to the exponential growth function. The sample began with 7 b

tatiyna

Answer:

125

Step-by-step explanation:

x(t) = x0 × (1 + r) t

where:

x(t) = the amount of some quantity at time t

x0 = initial amount at time t = 22

r = the growth rate

t = time

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3 years ago

Is -6 over 7 a whole number a integer number or a rational number

vodka [1.7K]

Answer:

It is a rational number

Step-by-step explanation:

It is a rational number because -6/7 is equal to -0.857142 repeating. And a rational number repeats.

Hope this helps☝️☝☝

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3 years ago

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How do I write 3x-1<_8 on a number line

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Solid circle over 3 line going left

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3 years ago

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