All categories

3 years ago

Please help with function notation question (see attached file)

Mathematics

1 answer:

adell [148]3 years ago

3 0

Answer:

3.5 and 5

Step-by-step explanation:

Given

f(x) = $\frac{x+5}{x}$

To evaluate f(2) substitute x = 2 into f(x)

f(2) = $\frac{2+5}{2}$ = $\frac{7}{2}$ = 3.5

Similarly for $f^{-1}$ (x)

$f^{-1}$ (2 ) = $\frac{5}{2-1}$ = 5

You might be interested in

What is bigger grams or milligrams?

AysviL [449]

A gram, because a milligram is one thousandth of a gram.

6 0

3 years ago

Rewrite the expression in the form 9^n (9^3) (9^12)

BartSMP [9]

Answer:

${9}^{15}$

Step-by-step explanation:

$( {9}^{3} ) \times ( {9}^{12} ) = 9 {}^{3 + 12} = {9}^{15} \\$

5 0

3 years ago

In parallelogram PQRS, PQ =4x+28, QR=x+31, RS = 10X+4. Which of the

Doss [256]

Answer:

Step-by-step explanation:

1) we know that opposite sides of a parallelogram are congruent so

4x+28=10x+4

2) subtract 4 on both sides

4x+24=10x

3)subtract 4x on both sides

24=6x

4)divide by 6 on both sides

4=x

5)substitute for x

length of RS =10(4)+4

length of RD=44

3 0

3 years ago

in a photograph alison stands next to her brother caleb. alison is 4cm tall in the photograph her actual height is 60in cale is

Dafna11 [192]

His actual height is 48 inches

4 0

3 years ago

PLEASE HELP ME IMMEDIATELY

valkas [14]

Answer:

Angle 1 = Angle 2 = 5y -23 (Vertically opposite)

We can see that we have a triangle in the figure

Since the sum of all angles of a triangle is 180,

(2x + 13) + (47) + (5y -23) = 180

2x + 5y + 37 = 180

2x + 5y = 143

5y = 143 -2x -----------------(1)

Assuming l and m to be parallel

angle 1 = 3x (corresponding angles)

5y - 23 = 3x

From equation (1)

143 -2x - 23 = 3x

120 = 5x

x = 24 ---------------------- (2)

Using (2) in (1)

5y = 143 - 2(24)

5y = 143 - 48

5y = 95

y = 19

Therefore,

x = 24

y = 19

Kindly mark Brainliest

8 0

3 years ago