3 years ago

F(x) = -2x - 7 and g(x) = x+8/x find (g of f) (-7)

Mathematics

1 answer:

monitta3 years ago

8 0

68/7

it the process

the total process is in above picture

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Write x=2 in Slope intercept form

SpyIntel [72]

Answer:

y= 2/1 + 0

Step-by-step explanation:

If there's not a y-int. it'll be 0.

4 0

2 years ago

ANSWER STAT!! ASAP!! OTHER WORDS THAT RELAT TO THAT!!!

kvasek [131]

I guess its 3.5x (edited) .....

8 0

3 years ago

Read 2 more answers

I need help. this is the problem x^2/3+10=7x^1/3

Arlecino [84]

$\it x^{\frac{2}{3}}+10=7x^{\frac{1}{3}} \Leftrightarrow (x^{\frac{1}{3}})^2-7x^{\frac{1}
 {3}} +10=0 
\\\;\\
We\ note\ x^{\frac{1}{3}} =t \ \ and \ the \ equation \ will \ be:
\\\;\\
t^2-7t+10 = 0 \Leftrightarrow t^2 -2t-5t+10=0 \Leftrightarrow t(t-2) -5(t-2)=0$

$\it \Leftrightarrow (t-2)(t-5)=0 
\\\;\\
t-2=0 \Rightarrow t=2 \Rightarrow x^{\frac{1}{3}}=2 \Rightarrow (x^{\frac{1}{3}})^3 =2^3 \Rightarrow x = 8
\\\;\\
t-5=0 \Rightarrow t=5 \Rightarrow x^{\frac{1}{3}}= 5 \Rightarrow (x^{\frac{1}{3}})^3 = 5^3 \Rightarrow x = 125$

S = {8; 125}

7 0

4 years ago

Meredith is playing games at an arcade to earn tickets that she can exchange for a prize. She has 287 tickets from a previous vi

Zarrin [17]

if y=367

then you need to figure out this:

367=5x+287

so remove 287 from 367

367-287=80

Then divide by 5

80/5=16

so, x=16