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2 years ago

PLEASEEE ANSWERR in which pair do both decimals represent rational numbers?

Mathematics

2 answers:

Julli [10]2 years ago

4 0

Answer:

C. 0.752 and 0.232323...

Step-by-step explanation:

Rational number is a group of numbers that can be written as a ratio of two integers. Basically that means that rational numbers can also be written as fractions.

Speaking of decimals, decimal numbers can be rational if they have finite number of decimals (0.752). Ecception to this rule are repeating decimals numbers; decimal numbers which have infinitely many decimals but they repeat in a pattern (0.23232323...).

Now, knowing this, it's easy to answer the question.

I hope this helped.

Jobisdone [24]2 years ago

3 0

Answer:

It's C

Step-by-step explanation:

A-P-E-X

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You work for a consumer advocate agency and want to find the mean repair cost of a washing machine. As part of your study, you r

Alenkasestr [34]

Answer:

90% confidence interval for the population mean is between a lower limit of $92.18 and an upper limit of $107.82.

Step-by-step explanation:

Confidence interval for a population mean is given as mean +/- margin of error (E)

mean = $100

sd = $25.20

n = 30

degree of freedom = n-1 = 30-1 = 29

confidence level (C) = 90% = 0.9

significance level = 1 - C = 1 - 0.9 = 0.1 = 10%

critical value (t) corresponding to 29 degrees of freedom and 10% significance level is 1.699

E = t×sd/√n = 1.699×25.20/√30 = $7.82

Lower limit of population mean = mean - E = 100 - 7.82 = $92.18

Upper limit of population mean = mean + E = 100 + 7.82 = $107.82

90% confidence interval is ($92.18, $107.82)

6 0

3 years ago

Read 2 more answers

Which equation correctly shows the multiplication of the means and extremes in the proportion 7.2∕9.6 = 21.6∕28.8?

vampirchik [111]

Which equation correctly shows the multiplication of the means and extremes in the proportion 7.2 ∕ 9.6 = 21.6 ∕ 28.8?

a. 7.2 ⋅ 9.6 = 21.6 ⋅ 28.8

b. 9.6 ⋅ 21.6 = 28.8 ⋅ 7.2

c. 7.2 ⋅ 21.6 = 28.8 ⋅ 9.6

d. 7.2 ⋅ 28.8 = 21.6 ⋅ 28.8

Answer:

b. 9.6 ⋅ 21.6 = 28.8 ⋅ 7.2

Step-by-step explanation:

When a proportion say a/b = c/d is given, the outer terms are called the extremes while the inner/middle terms are called the means.

In the case of a / b = c / d,

the outer terms are a and d

the inner terms are b and c

Often times, we find the cross products of the proportion to test whether the two ratios in the proportion are equal. To do that, we find the product of the extremes and equate it to the product of the means.

In the case of a / b = c / d,

the cross products are a x d and b x c

So if a x d = b x c, then a/b = c/d is a true proportion.

Now to the question;

Given proportion: 7.2 / 9.6 = 21.6 / 28.8

Extremes = 7.2 and 28.8

Means = 9.6 and 21.6

The correct multiplication of the means and extremes is therefore

9.6 x 21.6 = 7.2 x 28.8

9.6 · 21.6 = 7.2 · 28.8

6 0

3 years ago

I already solved this but I'm confused if the answer is A or C?

irinina [24]

The answer is C. a 4.5 feet, b. 30 feet

8 0

1 year ago

Read 2 more answers

A pentagon can be divided into five congruent triangles. The function t=5 tan theta models the height of each triangle. What is

pentagon [3]

We assume that the dimension 5 has units of feet.

The area of each triangle will be
A = (1/2)bh
where b=2×(5 ft), h=(5 ft)tan(54°)
Then
A = (1/2)(2×5 ft)(5 ft)(tan(54°)
A = 25×tan(54°) ft²

There are 5 such triangles making up this pentagon, so the total area is
total area = 5×25×tan(54°) ft² ≈ 172 ft²

6 0

3 years ago

Which equation is represented by the graph below?

I am Lyosha [343]

Answer:

the 2nd one. I got it correct

Step-by-step explanation:

3 0

3 years ago