Answer: 4.21596 x 10⁴⁷
<u>Step-by-step explanation:</u>
   (3.346 x 10²⁶) (1.26 x 10²¹)
= (3.346 x 1.26) x 10²⁶⁺²¹
= 4.21596 x 10⁴⁷
 
        
             
        
        
        
Answer:
x is 11 
Step-by-step explanation:
We know the slope (3/4) and a point (3,-4), so we can use point-slope form (y-y1=m(x-x1) 
Substitute the numbers into the equation 
y--4=3/4(x-3) 
simplify 
y+4=3/4(x-3) 
do the distributive property
y+4=3/4x-9/4 
subtract 4 from both sides
y=3/4x-25/4
this is the equation of the line. 
Since it says that (x,2) is a point in the equation, we can substitute it into the equation
2=3/4x-25/4
add 25/4 to both sides
33/4=3/4x 
multiply by 4/3 
11=x 
we can double check by plugging (11,2) into the equation of the line. 
2=3/4(11)-25/4
2=33/4-25/4
2=2
it works! :) 
Hope this helps!
 
        
             
        
        
        
Answer:
(8,-3)
Step-by-step explanation:
The given parabola is 

We factor -3 from the first two terms to get:

Add and subtract the square of half the coefficient of x


We simplify to get:

We compare this to y=a(x-h)²+k,
The vertex is (h,k)=(8,-3)