Answer:
Step-by-step explanation:
Answer:

Step-by-step explanation:
To find out the m(slope) of the equation use the formula:
.
Substitute the values:

Combine the values:

Find the value of the fraction:

M is -3.
The equation so far is 
To find the y intercept, substitute one pair of coordinates into the equation and solve for b:
.
We see that b =-17 so the full equation would be:
.
Note that a squared pyramid has a square base & 4 equal triangles.
To find the lateral the lateral area you calculate the area of the 4 equal triangles and to find the surface area (total Area) you add the area of the base:
Area of each triangle = side (5) x slant (9) and you divide by 2
==>Aera of 1 triangle = (9x5)/2 = 45/2 & for the 4 triangles
Lateral area = (45/2) x 4 = 90 in²
Now the base area (square) = 5 x 5= 25 in²
so the surface area = 90+25 = 115 in² (answer a)
Answer:
7/12
Step-by-step explanation:
7/6 - (1/4 + 1/3) =
7/6 - 1/4 - 1/3 = 14/12 - 3/12 - 4/12 = 7/12