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Liula [17]
3 years ago
9

Determine whether the formula describes y as a function of x. Explain your reasoning.. . y = -x

Mathematics
1 answer:
Alex17521 [72]3 years ago
7 0
The given formula above, y = -x, is a sample of a function. A function is an equation that would give only one value of y for every value of x. This is the same as saying that exactly one output is set by each input. If we take x = -1, the value of y is 1 and nothing else. 
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SOMEONE HELP PLS I NEED SOMEONE TO EXPLAIN STEP BY STEP IM SO CONFUSED
Minchanka [31]

Answer:

x = ln (33)

     ------------

      3 ln (2)

Step-by-step explanation:

2 ^ (3x) = 33

Take the ln of each side

ln ( 2 ^ (3x)) = ln  33

We know  ln ( a^b) = b ln a

3x ln (2) = ln 33

3x = ln 33

       ------------

           ln 2

Divide each side by 3

x = ln (33)

     ------------

      3 ln (2)

4 0
2 years ago
A convertible is traveling at 45 miles per hour, and its wheels have a diameter of 48 inches. How many complete revolutions do t
Angelina_Jolie [31]

Answer: The wheel make 315 complete revolutions in one minute

Step-by-step explanation: Given speed of convertible =45 miles/hr

To answer this question you will need to know how many inches the car travels Per minute.

1. To find this out you will first divide 45 miles by 60 to get the number of miles per minute.

The convertible travels 0.75 mi./min.

2. Next you will convert this number of miles to inches.

There are 63,360 inches per mile.

0.75 x 63360 = 47520 inches per minute.

3. You then need to find the distance the wheel travels in one rotation. You will need to find the circumference of the wheel.

C = pi x d

3.14 x 48

C = 150.72 inches

Each rotation is about 150.72 inches.

4. Finally, divide the total distance traveled in a minute by the circumference(distance of one rotation) to get the total number of rotations in a minute.

47520/150.72 is about 315.3 rotations per minute.

8 0
3 years ago
Find the difference between the fastest girls time and the slowest girl time. Barbra ran 3 3/10, Donna ran 2 4/5 , Cindy ran 4 3
Xelga [282]

Answer: 2.5 or 2 1/2

Step-by-step explanation:

You can convert the mixed fractions to decimal numbers:

- Divide the numerator by the denominator of the fraction.

- Add the result to the whole number.

Thenyou have:

Barbara's time: 3\ 3/10=3+0.3=3.3

Donna's time: 2\ 4/5=2+0.8=2.8

Cindy's time: 4\ 3/5=4+0.6=4.6

Nicole's time: 2\ 1/10=2+0.1=2.1

As you can see, the fastest girl is Cindy and the slowest girl is Nicole.

Then, you must make the following subtraction to calculate the difference:

4.6-2.1=2.5 or 2 1/2

8 0
4 years ago
Which term describes the relationship between L A and 2 B, if the m LA= 84º and m 2 B = 96º7
Daniel [21]

Answer:

Supplementary

Step-by-step explanation:

84 plus 96 equals 180 degrees

supplementary angles are angles that add up to 180 so their relationship is supplementary

3 0
3 years ago
What is the greatest common factor of 34, and 85​
lisabon 2012 [21]

Answer:

GCF = 17

Step-by-step explanation:

For the values 34, 85

Solution by Factorization:

The factors of 34 are: 1, 2, 17, 34

The factors of 85 are: 1, 5, 17, 85

Then the greatest common factor is 17.

7 0
3 years ago
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