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3 years ago

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1 answer:

5 0

An integer is a rational number with a denominator of 1.or, more commonly just what you think of as a counting number, but may be negative.an irrational number cannot be expressed as a fraction. When written down as a decimal, they never terminate, so a decimal value is not exact. There are various kinds of irrational numbers.

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The function y = f (x) is graphed below. What is the average rate of change of the function f(x) on the interval - 1 ≤ x ≤ 3?

jonny [76]

Answer:

$\displaystyle -2$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Average Rate of Change: $\displaystyle \frac{f(b) - f(a)}{b - a}$

Step-by-step explanation:

Step 1: Define

Interval -1 ≤ x ≤ 3

a = -1, b = 3

f(a) = f(-1) = 4

f(b) = f(3) = -4

Step 2: Find Average

Substitute in variables [ARC]: $\displaystyle \frac{f(3) - f(-1)}{3 + 1}$
Substitute: $\displaystyle \frac{-4 - 4}{3 + 1}$
[Fraction] Subtract/Add: $\displaystyle \frac{-8}{4}$
[Fraction] Divide: $\displaystyle -2$

4 0

3 years ago

Angela took 56 minutes to take her history test. Bryan took 70% of the time that it took Angela to complete the test. How long d

atroni [7]

It take 39.2 minutes

6 0

3 years ago

A dinner theater sold 270 tickets in 3 hours. At this rate, how many tickets will be sold in 8 hours

Sveta_85 [38]

Answer:

720 tickets in 8 hours

Step-by-step explanation:

you know that the theatre sold 270 tickets in 3 hours. you have to find the hourly rate of tickets sold. so you divide 3 into 270 and get 90. you take the hourly rate of tickets and multiply it by the 8 hours and get 720. Hope this helps!! :)

4 0

3 years ago

In a sample of 32 city residence, 24 reported that they take vitamin C supplement daily. There are 46,480 residence in the city.

Andreyy89

Answer:

34,860

Step-by-step explanation:

In a sample of 32 residence, 24 take Vitamin C. From here we can get the proportion of residents who take Vitamin C, which is 24/32 = 3/4 = 0.75

0.75 in percentage is 75%. This means 75% of the residents in sample take Vitamin C.

We can expect the same percentage of people in entire population to take Vitamin C.

Total population of city = 46480

Expected number of residents who take vitamin C in the city = 75% of 46480

= 0.75 x 46480

= 34860

This means, 34860 is an estimate of number of city residents who take Vitamin C supplement daily.

5 0

3 years ago

Please help me I have no clue how to do it. Thanks, Sincerely, Juanito

IrinaK [193]

I think there would be 24 combinations.

5 0

3 years ago

Read 2 more answers