Answer:
The answer is B.)22
Step-by-step explanation:
3∗5+5∗3
⇒3∗5=2×3−3×5+3×5
=6−15+15
=6
⇒5∗3=2×5−3×3+3×5
=10−9+15
=16
Therefore,3∗5+5∗3
⇒6+16=22
Thus the ans is 22
Hope it helps
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Answer:
ohh hiii and I dob5 understand that -
Answer:
Vertex = (12,64)
The meaning of this pair of values is that the y-coordinate is the maximum profit obtainable, and the x-coordinate is how many cups sold will make the maximum profit.
X-intercepts: 4 and 20
The meaning of theses values is that these amounts of cups sold (4 and 20) will make zero profit.
Step-by-step explanation:
To find the vertex we can use the formula for the x-coordinate of the vertex:
x_v = -b/2a
Where a and b are coefficients of the quadratic equation (in this case, a = -1 and b = 24)
So we have that:
x_v = -24 / (-2) = 12
The vertex is 12 cups of coffee. Now we apply this value to find the y-coordinate of the vertex:
f(x) = -12^2 + 24*12 - 80 = 64
So the vertex is (12,64). The meaning of this pair of values is that the y-coordinate is the maximum profit obtainable, and the x-coordinate is how many cups sold will make the maximum profit.
To find the x-intercepts, we need to make f(x) = 0 and find the values of x:
-x2 + 24x - 80 = 0
Delta = 24^2 - 80*4 = 256
sqrt(Delta) = 16
x1 = (-24 + 16)/(-2) = 4
x2 = (-24 - 16)/(-2) = 20
The x-intercepts are 4 and 20. The meaning of theses values is that these amounts of cups sold (4 and 20) will make zero profit.
Angle F should be 46 degrees
9514 1404 393
Answer:
72°
Step-by-step explanation:
The external angle E is half the difference of the intercepted arcs.
44° = (CD -DF)/2
88° = CD -DF
DF = CD -88° = 160° -88° = 72°
