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Katyanochek1 [597]
3 years ago
12

Let f(x) = 2x - 3. If f(x) = 15, what is x?

Mathematics
1 answer:
sergey [27]3 years ago
5 0

To find the value of input value 'x' of the function substitute the value of output value f(x) in the given function.

    If f(x) = 2x - 3 and we have to find the values of 'x' for f(x) = 15

    Substitute the value of f(x) in the given function,

15 = 2x - 3

2x = 15 + 3

2x = 18

x = 9

  • If g(x) = 3x + 2
  • For g(x) = 11

11 = 3x + 2

3x = 11 - 2

3x = 9

x = 3

  • If w(x) = 3x - 7
  • For w(x) = 14

114 = 3x - 7

3x = 21

x = 7

  • If h(x) = -2x - 5
  • For h(x) = -25

-25 = -2x - 5

25 = 2x + 5

2x = 20

x = 10

Learn more,

brainly.com/question/1221931

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If point A is located at (-7,5) and is rotated around 270 clockwise about the origin, then point A' is located at...
jonny [76]

Answer:

B.(-5,-7)

Step-by-step explanation:

According to the rule of rotation if you were to have a 270* clockwise you would first switch the x and y values. Ex: (-7,5) -> (5,-7). next you would make the original y coordinate a negative. (5,-7) -> (-5,-7).

6 0
3 years ago
For the function f(x)=x2-4, fins the value of f(x) when x=6
garri49 [273]

f(x)=x^2-4\\f(6)=6^2-4\\f(6)=32

OR

f(x)=x*2-4\\f(6)=6*2-4\\f(6)=8

P.S. Hello from Russia

7 0
3 years ago
Read 2 more answers
Find the value of 15.0 N in pounds. Use the conversions 1slug=14.59kg and 1ft=0.3048m .
Sliva [168]

The value of 15.0 N in pounds = 3.375 lb

<h3><em>Further explanation </em></h3>

The derivative magnitude is a quantity derived from the principal amount

7 main quantities have been determined based on international standards, namely:

  • 1. Length, meters (m)
  • 2. Time, second (s)
  • 3. Mass, kilograms (kg)
  • 4. Temperature, kelvin (K)
  • 5. Light intensity, candela (cd)
  • 6. Electric current, ampere (A)
  • 7. Amount of substance, mol (m)

Newton (N) is one unit of force (F) which is a quantity derived from mass (m), length (l) and time (s)

Newton can be expressed in terms of Kg m / s²

Formula used:

F = m. a

N = kg. m / s²

In the British system there are units of slug, feet, and pounds so that the unit of force becomes:

F = m. a

Lb = slug. ft / s²

The relationship between the two-unit systems above is:

1 kg = 0.0685 slug

1 slug = 14.59 kg

1 newton = 0.225 lb

1 lb = 4,448 newtons

1 ft = 0.3048 m

So if we change 15 N to lb by using slug and ft

15 N = 15 * (1 / 14.59) slug * (1 / 0.3048) ft / s²

15 N = 3,375 slug ft / s ²

15 N = 3,375 lb

or we convert directly:

15 N = 15 * 0.225 lb

15 N = 3,375 lb

<h3><em>Learn more </em></h3>

yard conversion

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Keywords: slug, Newton, feet, kg, pound

6 0
3 years ago
Select the lesser of The two given numbers -152, 12
Ymorist [56]

Answer:

-152

Step-by-step explanation:

-152 < 12

-152 is negative, which means it is less than 1.

12 is positive, which means it is greater than 1.

Therefore, -152 is the lesser of the two given numbers.

Have a great rest of your day! :)

5 0
2 years ago
Read 2 more answers
What is the sum of 6 of the interior angles of a regular octagon?
goldenfox [79]

Answer:

The sum of the measures of the interior angles of an octagon =(8−2)180° . The sum of the measures of the interior angles of an octagon is 1080° .

6 0
3 years ago
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