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agasfer [191]
3 years ago
10

If f(4) = 5, find f ^-1 (5).

Mathematics
1 answer:
Levart [38]3 years ago
7 0

Answer:

  4

Step-by-step explanation:

The relation defined by f includes (4, 5). Then the inverse relation will include (5, 4).

  f^{-1}(5)=4

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Please answer 7/10k=21 find x ill give you brainliest
algol [13]

Answer:

k=2.1

Step-by-step explanation:

7/10k=21

x7         x7 Multiply seven from each side of the equation.

10k=21

/10    /10 Divide ten from each side of the equation. 21/10=2.1

k=2.1

3 0
3 years ago
What is the answer to y=3.648·1.182×
Goryan [66]

Answer:

if you are solving for X then X=0

Step-by-step explanation:

7 0
3 years ago
Expon
Tema [17]

A and D , that is, 5∛2x and -3∛2x are sets of the radical expressions listed that could be considered like terms. This can be obtained by understanding what like radicals are.

<h3>Which sets of the radical expressions listed could be considered like terms as written?</h3>
  • Radical expression: Radical expression is an equation that has a variable in a radicand (expression under the root) or has a variable with a rational exponent.

For example, √128, √16

  • Like radicals: Radicals that have the same root number and radicand (expression under the root)

For example, 2√x and 5√x are like terms.

Here in the question radical expressions are given,

  • 5∛2x
  • -4x∛2
  • 5√2x
  • -3∛2x
  • 5x√2x

By definition of like radicals we get that 5∛2x and -3∛2x are like terms since root number and radicand are same, that is, root number is 3 and radicand is 2x.

Hence A and D , that is, 5∛2x and -3∛2x are sets of the radical expressions listed that could be considered like terms.

Learn more about radicals here:

brainly.com/question/16181471  

#SPJ9

3 0
1 year ago
The perimeter of a playing field for a certain sport is 254 ft. The length is 47 ft longer than the width. Find the dimensions.
Vikentia [17]

Answer: the length is 87 feet

The width is 40 feet

Step-by-step explanation:

Let L represent the length of the playing field.

Let W represent the width of the playing field.

The playing field is rectangular. The formula for determining the perimeter of a rectangle is expressed as

Perimeter = 2(L + W)

The perimeter of a playing field for a certain sport is 254 ft. This means that

254 = 2(L + W)

L + W = 254/2

L + W = 127 - - - - - - - - - - - -1

The length is 47 ft longer than the width. This means that

L = W + 47

Substituting L = W + 47 into equation 1, it becomes

W + 47 + W = 127

2W + 47 = 127

2W = 127 - 47 = 80

W = 80/2 = 40

L = W + 47 = 40 + 47

L = 87

4 0
3 years ago
Anika is hiking on a rectangular trail at the national park. There are four resting spots along the corners of the trail. On the
tia_tia [17]
The perimeter is 10 try to draw these points on the graph and count the distance between each or you can just look at the coordinates and find the distance and then add length and width
4 0
3 years ago
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