Answer:
The correct answer is B
Step-by-step explanation:
In this problem, Solution A isnt possible because if he washes 10 cars he earns $80 so that should be in the domain
Solution B is the correct one because it collects all the possible numbers of the equation, from 0 car washed=$0 to 10 car washed=$80(1 by 1)
The problem with solution c is the same as solution A
Finally, Solution D has an small problem, and that is that if he washes 10 cars the amount he gains is $80 so x cant be <$80, it should have been ≤$80
Answer:
-5
Step-by-step explanation:
All of the numbers to the left of the origin on the x-axis are negative.
Hope this helps!
Answer:
Yes
Step-by-step explanation:
For 2 figures to be similar, the ratio of their corresponding must be the same, as well as their proportion. The simplification of their ratio gives us the scale factor of their corresponding sides. Also, their corresponding angles are congruent.
Looking at polygon LMNO and WXYZ, let's set the ratio of their corresponding side against each other to see if they would be equal to each other.
Thus, we have:
LM/XY = ON/WZ = MN/WZ = LO/ZY
35/10 = 35/10 = 63/18 = 63/18
It would give us a scale factor of 3.5
They are similar.
The answer is:
YES
LMNO ~ WXYZ
Scale factor = 3.5
Answer:I have this and I’m in 7th grade lol
Step-by-step explanation:
F'(x)=-2x{e^(-x²)}
Equating f'(x)=0,
i.e,
-2x{e^(-x²)}=0....eqn(i)
For maximum slope:
Differentiating (i) wrt x,we get,
4x² {e^(-x²)}-2 {e^(-x²)}=0
{e^(-x²)} [4x²-2]=0
4x²-2=0
x=1/√2
If f(x)=y then f'(x)=dy/dx=slope
So,
Maximum slope
= f'(x)
= -2x{e^(-x²)}
=-2×(1/✓2){e^(-1/✓2)²}
= -✓2{e^(-1/2)}
=(-sqrt 2/sqrt e)
=-sqrt(2/e)➡c is correct
