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3 years ago

Which of the following is a rational number (4 points) 15 ,16,21,22

Mathematics

2 answers:

Mila [183]3 years ago

6 0

Well, a rational number is a number that can be expressed as a fraction, so which do you think

yulyashka [42]3 years ago

5 0

16 is the rational number, hope this is helpful

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Evaluate the function f(x) at the given numbers (correct to six decimal places). f(x) = x2 − 3x x2 − 9 , x = 3.1, 3.05, 3.01, 3.

Lostsunrise [7]

Answer:

Values of f(x) for different values of x.

Step-by-step explanation:

We are given the following function in the question:

$f(x) = \displaystyle\frac{x^2-3x}{x^2-9}$

We have to find the value of given function at the following x.

x = 3.1, 3.05, 3.01, 3.001, 3.0001, 2.9, 2.95, 2.99, 2.999, 2.9999

$f(x) = \displaystyle\frac{x^2-3x}{x^2-9}\\\\f(3.1) = \frac{(3.1)^2-3(3.1)}{(3.1)^2-9} = 0.508197\\\\f(3.05) = \frac{(3.05)^2-3(3.05)}{(3.05)^2-9} = 0.504132\\\\f(3.01) = \frac{(3.01)^2-3(3.01)}{(3.01)^2-9} = 0.500832\\\\f(3.001) = \frac{(3.001)^2-3(3.001)}{(3.001)^2-9} = 0.500083\\\\f(3.0001) = \frac{(3.0001)^2-3(3.0001)}{(3.0001)^2-9} = 0.500008\\\\f(2.9) = \frac{(2.9)^2-3(2.9)}{(2.9)^2-9} = 0.4915254\\\\f(2.95) = \frac{(2.95)^2-3(2.95)}{(2.95)^2-9} =0.495798\\\\$

$f(2.99) = \displaystyle\frac{(2.99)^2-3(2.99)}{(2.99)^2-9} =0.499165\\\\f(2.999) = \displaystyle\frac{(2.999)^2-3(2.999)}{(2.999)^2-9} = 0.499917\\\\f(2.9999) = \displaystyle\frac{(2.9999)^2-3(2.9999)}{(2.9999)^2-9} =0.499991$

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3 years ago

Joe burns 41 calories in of a minute riding his bike. What is Joe's unit rate?

Valentin [98]

Answer: idk 41/60?

Step-by-step explanation:

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3 years ago

How many gallon jugs will 8 quarts fill?

vichka [17]

Answer:

The answer is 2 quarts!(:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Find the value of x. Then find the missing angle measures of the polygon

UkoKoshka [18]

Answer:

x=10

5x=50

2x=20

Step-by-step explanation:

110+5x+2x = 180 combine like terms and move the constants to the same side

7x=70

x = 10

5(10) = 50

2(10) = 20

4 0

3 years ago

Solve for x: 3|x-3| 2=14<br> a. No solution<br> b. x=-1,x=8.3<br> c. x=0,x=7<br> d. x=-1,x=7

VMariaS [17]

I am looking on the answers, and there is only one case, when a or b or c or d pass: 3|x-3| + 2 = 14. So I assume, that before two is plus. Then:

3|x-3|+2=14 |minus 2
3|x-3|=12 |divide 3
|x-3|=4

From absolute value definition you've got two ways:

x-3=4 or x-3=-4
x=7 or x=-1

And answer d) passes

3 0

3 years ago