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3 years ago

The radius of the circle-shaped is 9 inches. What is the approximate circumference? (Use 3.14 for

Mathematics

1 answer:

Schach [20]3 years ago

5 0

Answer:

56.5

Step-by-step explanation:

circumfrence is 2 pi R

If the radius is 9=R

then the circumfrence is 56.5

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How many solutions do these equations have y= 3x+4 y+6=3x

Nataly [62]

Answer:

Step-by-step explanation:

hello :

the system is : y= 3x+4....(*)

y+6=3x....(**)

by (**) : y = 3x - 6

so : y= 3x+4

y= 3x - 6

means : 3x+4 = 3x - 6

4= -6.......(false)

conclusion : no reals solutions

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3 years ago

How do i solve this?

Leni [432]

Answer: this is hard I hate math sorry

Step-by-step explanation:

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3 years ago

Evaluate the expression.

Firlakuza [10]

Step-by-step explanation:

the expression 5²=25

i hope this is helpful.

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2 years ago

Please explain how to get the answer.

Maru [420]

2r=R

Because 2 of "r" make 1 R

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3 years ago

Read 2 more answers

Graph the inverse circular function by hand, given f(x) = 3sin(2x) ;-pi/4 ≤ ≤pi/4

nasty-shy [4]

Part a)

a) The given function is

$f(x) = 3 \sin(2x)$

We let

$y = 3 \sin(2x)$

Interchange x and y.

$x= 3 \sin(2y)$

Solve for y;

$\frac{x}{3} = \sin(2y)$

$y = \frac{1}{2} { \sin}^{ - 1}( \frac{x}{3} )$

${f}^{ - 1}(x) = \frac{1}{2} { \sin}^{ - 1}( \frac{x}{3} )$

Part b) The range of f(x) refers to y-values for which f(x) exists.

The range of f(x) is

$- 3 \leqslant y \leqslant 3$

This is because the function is within y=-3 and y=3.

c) The range of

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

$- \frac{ \pi}{4} \leqslant y \leqslant \frac{\pi}{4}$

The domain is -3≤x≤3

This is because the domain and range of a function and its inverse swaps.

Part d) The graph is shown in the attachment.

3 0

4 years ago