yes because it contains a decimal
Answer:
x = 2 is the axis of symmetry
Step-by-step explanation:
y - 4x = 7 – x2?
y = -x²+4x +7
y = - ((x²- 4x+4)-4)+7
y = - (x-2)²+11 ..... is the the parabola's equation when : x = 2 is the axis of symmetry
Answer:
4.9
Step-by-step explanation:
Let us first find the frequency from the cumulative frequency.
Starting number is same.
To find the next number subtract the previous number from that number.
i.e first number = 0.15
Second number = 0.45 – 0.15 = 0.3
Third number = 0.60 – 0.45 = 0.15
Fourth number = 0.85 – 0.60 = 0.25
Fifth number = 1.00 – 0.85 = 0.15
Value Frequency Value × Frequency
1 0.15 0.15
3 0.3 0.9
5 0.15 0.75
7 0.25 1.75
9 0.15 1.35
Number of frequency = 1
Total value = 0.15 + 0.9 + 0.75 + 1.75 + 1.35 = 4.9
Mean =
= 4.9
Answer: 12
Step-by-step explanation:
You can find the area of a rectangle that forms around it, and then subtract the little extra triangles. You can form a 5 by 5 square around the points. There are 4 extra little triangles. Two of them have a base and height of 2 and 2. Two of them have a base and height of 3 and 3. So you get the total area of those 4 triangles to be: 2+2+4.5+4.5=13. So 25-13=12.