Answer:
sandwich = 6.50
Step-by-step explanation:
Let s = sandwich price
d = drink price
6s + 4d = 53
4s + 6d = 47
Multiply the first equation by 3
18s + 12d = 159
Multiply the second equation by -2
-4s - 12d = -94
Add these equations together
18s + 12d = 159
-8s - 12d = -94
--------------------------
10s = 65
Divide by 10
s = 65/10
s =6.5
the derivitive is just the slope
minimum happens when the derivitive goes from negative to positive, imagine a slope of the function, the minimum is where the slope goes from neative to positive, and to get there, it has to pass through 0
max happens when the derivitive goes from positive to negative
increaseing is when the derivitive is positive
so, based on what you said, the slope of f(x) is 0 at x=-3, x=1 and x=2 since those are where the derivitive is 0 (derivitive is just the slope)
A and B are wrong because the derivitive isn't 0 at those points
C is correct because increasing means that the derivitive is positive, and so therefo since the only hoirontal place in between 1 and 2 is 1.5, it must remain positive throughout and not dip down, C is right
D is wrong then
answer is C
Answer: See explanation
Step-by-step explanation:
3 × 10⁸ ÷ 3.4 × 10²
(3 × 100000000) ÷ (3.4 × 100)
300000000 ÷ 340
882352.94117
Round to the nearest hundredth
882352.94117 ≈ 882352.94
Round to the nearest tenth
882352.94117 ≈ 882352.9
Round to the nearest whole number
882352.94117 ≈ 882353
Hope I helped!
Answer:
area of a triangle is 1/2×h×b
Step-by-step explanation:
1÷2×12×13
=78
