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3 years ago

Given that €1 = £0.72 a) how much is €410 in £? b) what is the £ to € exchange rate

Mathematics

1 answer:

avanturin [10]3 years ago

6 0

Answer:

£295.2

€1.39

Step-by-step explanation:

€1 = £0.72

a) €410= £0.72*410= £295.2

b) £1= €1/0.72= €1.39

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The circular radio signal from transmitter A has three times the radius of the circular signal from transmitter B. How many time

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For each sequence, find the first 4 terms and the 10th term.<br> a) 12-n<br> B 5 - 2n

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Answer:

Solution given:

tn=12-n

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2nd term =12-2=10

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tn=5-2n

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3rd term=5-2*3=-1

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2 years ago

A town is debating to put curbs along streets. The ratio of town residents who support the act to those who appose is 2 to 5. If

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A study was conducted to compare the proportion of drivers in Boston and New York who wore seat belts while driving. Data were c

allochka39001 [22]

Answer:

a) The test statistic is $z = -2.51$

b) The pvalue is 0.0060.

Step-by-step explanation:

Question a:

Ha: pB < pNY

This means that the alternate hypothesis is rewritten as:

$H_a: p_{B} - p_{NY} < 0$

While the null hypothesis is:

$H_0: p_{B} - p_{NY} = 0$

The test statistic is:

$z = \frac{X - \mu}{s}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis and s is the standard error

pB = 0.581, pNY = 0.832

This means that $X = 0.581 - 0.832 = -0.251$

0 is tested at the null hypothesis:

This means that $\mu = 0$

Standard error = 0.1

This means that $s = 0.1$

Test statistic:

$z = \frac{X - \mu}{s}$

$z = \frac{-0.251 - 0}{0.1}$

$z = -2.51$

The test statistic is $z = -2.51$

Question b:

The pvalue is the probability of finding a proportion less than -0.251, that is, a difference of at least 0.251, which is the pvalue of Z = -2.51.

Looking at the z-table, Z = -2.51 has a pvalue of 0.0060

The pvalue is 0.0060.

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3 years ago