3 years ago

Emily is saving up to buy a new phone. She already has $75 and can save an

Mathematics

1 answer:

irga5000 [103]3 years ago

5 0

Equation t= $7 times w

$7 times 4 = $28

You might be interested in

Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x.

charle [14.2K]

ANSWER

See below

EXPLANATION

Given

$f(x) = \frac{ {x}- 9 }{x + 5}$

and

$g(x) = \frac{ - 5x - 9}{x - 1}$

$(f \circ \: g)(x)= \frac{ (\frac{ - 5x - 9}{x - 1})- 9 }{(\frac{ - 5x - 9}{x - 1} )+ 5}$

$(f \circ \: g)(x)= \frac{ \frac{ - 5x - 9 - 9(x - 1)}{x - 1}}{\frac{ - 5x - 9 + 5(x - 1)}{x - 1} }$

Expand:

$(f \circ \: g)(x)= \frac{ \frac{ - 5x - 9 - 9x + 9}{x - 1}}{\frac{ - 5x - 9 + 5x - 5}{x - 1} }$

$(f \circ \: g)(x)= \frac{ \frac{ - 5x - 9x + 9 - 9}{x - 1}}{\frac{ - 5x + 5x - 5 - 9}{x - 1} }$

$(f \circ \: g)(x)= \frac{ \frac{ - 14x }{x - 1}}{\frac{ -14}{x - 1} }$

Since the denominators are the same, they will cancel out,

$(f \circ \: g)(x)= \frac{ - 14x}{ - 14} = x$

8 0

2 years ago

Problem 5 <br><br><br> Please help

Anon25 [30]

90 degrees that’s the answer for this question

4 0

3 years ago

PLEASE HELP FAST EMERGENCY

Bingel [31]

Answer:

C because you add 1 to both sides

6 0

2 years ago

15 points The question is in the pic.

Archy [21]

I don’t quite see the question, just the picture

8 0

2 years ago

If A and B are two points on a circle such that m of arc (AB) = 260°. A possible value for the

Sindrei [870]

Answer:

c) 50 degrees

Step-by-step explanation:

360-260 = 100 degree central angle

inscribed angle = 1/2 (100) = 50

6 0

2 years ago