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4 years ago

Find the value of cd if c=3/4 and d=3 2/4 simplify if needed?

Mathematics

2 answers:

USPshnik [31]4 years ago

6 0

Answer:

=2 5/8

Step-by-step explanation:

Converting mixed numbers to fractions, reducing where possible, our initial equation becomes,

3/4×7/2

Applying the fractions formula for multiplication,

=3×7/4×2

= 21/8

Simplify,

2 5/8

yarga [219]4 years ago

6 0

Answer:

Just substitute and multiply.

Step-by-step explanation:

You can do it using the calculator

( It's easier )

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Answer:

a) 1 (the slope)

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2 years ago

A population of 120,000 grows 3% per year for 15 years, how much will the population be after 15 years?

Wewaii [24]

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4 years ago

Write 84% as a decimal

alina1380 [7]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Suppose that the local sales tax rate is 7% and you purchase a car for 11,100 how much tax is paid?

ss7ja [257]

Answer:

11877

Step-by-step explanation:

11100 * 7% = 777

11100 + 777 = 11877

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3 years ago

(3 points) A survey of 15651565 people who took trips revealed that 178178 of them included a visit to a theme park. Based on th

igor_vitrenko [27]

Answer:

We fail to reject the null hypothesis at 0.05 significance level. We cannot say that less than 12% of trips include a theme park visit.

Step-by-step explanation:

let p be the proportion of trips included a visit to a theme park.

$H_{0}$ : p=0.12

$H_{a}$ : p<0.12

To test, we need to calculate test statistic of the sample proportion as:

z= $\frac{p(s)-p}{\sqrt{\frac{p*(1-p)}{N} } }$ where

p(s) is the sample proportion of trips included visit to a theme park ( $\frac{178}{1565}=0.1137$

p is the proportion assumed under null hypothesis. (0.12)

N is the sample size (1565)

Using the numbers, z= $\frac{0.1137-0.12}{\sqrt{\frac{0.12*0.88}{1565}}}$

= −0.767 and p(z) is ≈0.222

Since 0.222 > 0.05 we fail to reject the null hypothesis.

3 0

3 years ago