3 years ago

HELPPPPPP!!!!!!!!PLSSSS!!!!!!!

Mathematics

2 answers:

Luda [366]3 years ago

8 0

Answer:

Step-by-step explanation:

kozerog [31]3 years ago

5 0

Answer:

Step-by-step explanation:

just took it.

You might be interested in

A snowboarder is traveling at 6 miles every 9 minutes. At this rate, the

monitta

Answer:

8 miles

Step-by-step explanation:

6/9 = x/12

6/9*12 = 8

8 miles

7 0

3 years ago

Read 2 more answers

Write the number 0.632 in the other forms

shusha [124]

.600 + .030 + .002 is another form for that number - this is standard form : )

6 0

3 years ago

A line of best fit can only be established for data with positive correlation. true or false

Vanyuwa [196]

I think it would be true

8 0

3 years ago

Read 2 more answers

Round 236 to the nearest tenth

bekas [8.4K]

Is it .236 cuz then you would round it to,.24

7 0

3 years ago

Read 2 more answers

Solve the equation 3^(2x) -4*3^(x+1) + 27 = 0. use rules of exponents to change 3^(x+1)

Leviafan [203]

Answer:

$\huge\boxed{x=1\ \vee\ x=2}$

Step-by-step explanation:

$3^{2x}-4\cdot3^{x+1}+27=0\\\\\text{use}\ (a^n)^m=a^{nm}\ \text{and}\ a^n\cdot a^m=a^{n+m}\\\\\left(3^x\right)^2-4\cdot3^x\cdot3^1+27=0\\\\\left(3^x\right)^2-12\cdot3^x+27=0\\\\\text{substitute}\ 3^x=t>0\\\\t^2-12t+27=0\\\\t^2-3t-9t+27=0\\\\t(t-3)-9(t-3)=0\\\\(t-3)(t-9)+0\iff t-3=0\ \vee\ t-9=0\\\\t-3=0\qquad\text{add 3 to both sides}\\\boxed{t=3}\\\\t-9=0\qquad\text{add 9 to both sides}\\\boxed{t=9}$

$\text{We return to substitution:}\\\\3^x=t\\\\3^x=3\ \vee\ 3^x=9\\\\3^x=3^1\ \vee\ 3^x=3^2\\\\\boxed{x=1}\ \vee\ \boxed{x=2}$

4 0

3 years ago