Ask question

Ask question

All categories

3 years ago

8

How do I create a radical equation with an extraneous solution quickly? How do I go the same for a radical equation with a non-e

xtraneous solution?

1 answer:

Step2247 [10]3 years ago

5 0

Answer:

why r u wafflin

Step-by-step explanation:

You might be interested in

F(x)= 5x^2+6, g(x)= 7x find (f o g)(x), find (g o f)(x), find f(g(-4)), fine g(f(5))

KiRa [710]

$(f o g)(x) = 245x^2+6\\(g o f)(x) = 5x^2+42\\ f(g(-4)) = 3926\\g(f(5)) = 917$

Step-by-step explanation:

Given

$f(x) = 5x^2+6\\g(x) = 7x$

So

$(f o g)(x) = 5(7x)^2+6\\= 5(49x^2)+6\\=245x^2+6\\(g o f)(x) = 7(5x^2+6)\\= 35x^2+42\\(fog(x))=245x^2+6f(g(-4)) = 245(-4)^2+6 \\=245(16)+6\\=3920+6\\=3926\\g(f(x)) = 35x^2+42\\g(f(5)) = 35(5)^2+42\\=35(25)+42\\=875+42\\=917$

Hence,

$(f o g)(x) = 245x^2+6\\(g o f)(x) = 5x^2+42\\ f(g(-4)) = 3926\\g(f(5)) = 917$

Keywords: functions, Function composition

Learn more about functions at:

#LearnwithBrainly

7 0

3 years ago

Solve: 2x+3y=1<br> y=-2x+11

Sauron [17]

Answer:

(8, -5); x=8; y=-5

Step-by-step explanation:

i'll be solving via substitution

2x+3y=1; y=-2x+11

2x + 3(-2x +11) = 1

2x -6x +33 = 1

-4x = -32

x = 8

2(8) + 3y = 1

16 + 3y = 1

3y = -15

y = -5

(8, -5)

Check:

-5 = -2(8) + 11

-5 = -16 + 11

-5 = -5

6 0

3 years ago

to rent a bike for 3 hours it costs $12. for 5 hours it costs $20. a) write an equation that models the cost of a bike rental as

pychu [463]

To answer b - You need to find how much it costs to rent a bike per hour. To do this divide the over all cost ($12) by your amount of time (3 hrs) to get $4 per hour. Same with the $20 per 5 hours!

5 0

3 years ago

What is 2(2+4x)+6(3x-4)

d1i1m1o1n [39]

Answer:

26x-20

Step-by-step explanation:

brainliest plssss

6 0

3 years ago

Read 2 more answers

(calculus) please help! will mark brainliest!

Sever21 [200]

Answer:

so sorry ! but i need it

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers