So 4 triangular faces of the pyramid will have total area
<span>= 4 ×<span>12 </span>× base × height = 4 × <span>12 </span>× 34 × 58f<span>t2 </span>= 3944f<span>t2</span></span>
So <span>3944f<span>t2</span></span> of marble cover the faces of the pyramid.
Answer:
a=20
Step-by-step explanation:
4a+8-2a-3=45
-8 on both sides
4a-2a-3=37
+3 on both sides
4a-2a=40
2a=40
a=20
Answer:
162.5
Step-by-step explanation:
To find the equation of the line, we are going to use the point-slope form, which is listed below:
is a point on the line
is the slope of the line
You may notice that we have a point, but no slope is given to us. However, the problem states that the line is parallel to the equation 
, which means that it has the same slope as this line, which is 3. (Remember that this line is set up in 
form, where is the slope)
Thus, we can now insert our values into the point-slope formula to find the equation of our line.
The problem made it clear that it didn't want the form , so let's put it in standard form:
The equation of our line is 
.
