Answer:
1) 3
2) 3.5
3) 9
4) 12
Step-by-step explanation:
.5*6=3
.5*7=3.5
.75*12=9
.4*30=12
Answer:
The correct option is B.
Step-by-step explanation:
The given vertices are (-4,2),(1,2),(1,-3) and (-4,-3).
Plot these point on a coordinate plate. From the graph it is noticed that the given quadrilateral is a square.
Distance formula:

Use distance formula to find the side length.


Since both consecutive sides are equal therefore it is a square.
Area of a square is

Where, a is side length.
The side length of the square is 5. So, area of ABCD is


Therefore the area of quadrilateral is 25 units square. Option B is correct.
M = - 10 + 9 / 2 + 5
m = - 1 / 3
Answer:
f^-1(x)= ![\sqrt[7]{x} /8](https://tex.z-dn.net/?f=%5Csqrt%5B7%5D%7Bx%7D%20%2F8)
Step-by-step explanation:
f(x)=8x^7
x^7=f(x)/8
x=![\sqrt[7]{x} /8](https://tex.z-dn.net/?f=%5Csqrt%5B7%5D%7Bx%7D%20%2F8)
f^-1(x)= ![\sqrt[7]{x} /8](https://tex.z-dn.net/?f=%5Csqrt%5B7%5D%7Bx%7D%20%2F8)