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Dmitry_Shevchenko [17]

2 years ago

14

When adding 51.2 to a certain number, the sum is 56.05, as seen below. What number should go in the box to complete the addition

problem?

1 answer:

Rom4ik [11]2 years ago

3 1

4.85 is the answer because if you subtract 51.2 from 56.05 you get your answer

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. Find the inverse of the function below on the given interval and write it in the form yequalsf Superscript negative 1 Baseline

Elena L [17]

Answer:

The inverse of the function is $f^{-1}(x)=\frac{x-5}{3}$ .

Step-by-step explanation:

The function provided is:

$f (x)=3x+5$

Let $f(x)=y$ .

Then the value of <em>x</em> is:

$y=3x+5\\\\3x=y-5\\\\x=\frac{y-5}{3}$

For the inverse of the function, $x\rightarrow y$ .

⇒ $f^{-1}(x)=\frac{x-5}{3}$

Compute the value of $f[f^{-1}(x)]$ as follows:

$f[f^{-1}(x)]=f[\frac{x-5}{3}]$

$=3[\frac{x-5}{3}]+5\\\\=x-5+5\\\\=x$

Hence proved that $f[f^{-1}(x)]=x$ .

Compute the value of $f^{-1}[f(x)]$ as follows:

$f^{-1}[f(x)]=f^{-1}[3x+5]$

$=\frac{(3x+5)-5}{3}\\\\=\frac{3x+5-5}{3}\\\\=x$

Hence proved that $f^{-1}[f(x)]=x$ .

8 0

2 years ago

What is the area of a right triangle with a base of 25 centimeters and a height of 13 centimeters?

sdas [7]

Answer:

<h3>162.5 cm²</h3><h3>Step-by-step explanation:</h3>

Area of a triangle = (BH)/2

Base= 25

Height=13

(25×13)/2= 162.5 cm²

6 0

2 years ago

(HELP) Find the circumference of a circle with diameter,

Nikolay [14]

Answer:

69.08

Step-by-step explanation:

22x3.14(PI)=69.08

6 0

3 years ago

Please help me!!!!!!!!!

bagirrra123 [75]

F(-2)+g(5) = 3(-2) -1 + (-5) + 6
f(-2)+g(5) = -6 -1 - 5 + 6
f(-2)+g(5) = -6

5 0

3 years ago

As an estimation we are told £3 is €4.<br> Convert £37.50 to euros.

pantera1 [17]

Answer:41.43 Euro

there ya go

6 0

2 years ago

Read 2 more answers