Given/equations formed from text:
I: l=w+3
II: A=l*w
III: new area B=(l-2)*w
IV: B=A-30
substitute l in II with I to remove l:
II': A=l*w=
(w+3)*w=
w^2+3w
substitute l in III with I to remove l:
III': B=(l-2)*w=
(w+3-2)*w=
(w+1)*w=
w^2+w
substitute A and B from II' and III' into IV:
B=A-30
w^2+w=w^2+3w-30
30=2w
w=15
insert w=15 into I:
l=15+3=18
->
A) dimensions of full size rectangle are width 15 and length 18
dimensions of reduced size rectangle are width 15 and length 16
B) full size: 15*18=10*18+5*18=180+90=270cm^2
reduced size: 15*16=10*16+5*16=160+80=240cm^2
Answer:
1/2
Step-by-step explanation:
Okay so the find slope you have the put the line in y-mx+b form. In -2x+4y=16 to get 'y' by its slef you have to add 2y to each side. 4y=16+2x then you have to divide by 4 to get y alone. y=4+1/2x
Your slope is 1/2
Answer:
use brainly points
Step-by-step explanation:
F ^-1(x) = x+7/2 should be your solution I really hope this helps and im so sorry if it doesn’t!!
Answer: B.
Step-by-step explanation:
When there is an exponent of another exponent, you can multiply them together:
As such, the expression in the image can be simplified to
, or r ^ -42.
Negative exponents can also be represented by positive exponents in the denominator of a fraction.
For instance, 
can be rewritten as 
.
The correct answer is 
.
